341 results about "Guava extract" patented technology

The invention discloses a no-pollution standardized high-yield method for cultivating guava, which comprises the steps of field selection, orchard establishment, pruning of guava plants, solid manure management, water management, pest control, and flower and fruit management, wherein in the plant pruning, the plant is pruned into a short-trunk multi-bough round head shape so as to culture a stunting crown; in the solid manure management, basic manure and supplementary fertilizer are combined, wherein the basic manure is applied by combining deep tillage after harvesting in spring, the supplementary organic fertilizer is applied in time after fruit setting, and trace elements are supplemented by spraying fertilizer on the foliage; in the water management, weeds are covered within the range of crown to preserve moisture, and the water-saving irrigation system combining spray irrigation and trickle irrigation is utilized; in the pest control, the comprehensive agricultural measures are utilized to cooperate with spraying of high-efficiency low-toxicity low-residual pesticide, orchard management in winter and spring is actively developed, and physical pesticide control technology is popularized; and in the flower and fruit management, flower thinning and fruit thinning are carried out according to the tree vigor and nutritional status, and the fruits in the whole orchard are filled in bags. The invention has the characteristics of low pesticide residue, high fruit quality and low environmental pollution.

The invention discloses a compound chicory series product and a preparation method thereof. The series product is prepared from main component chicory and one or more yam rhizome, semen coicis, rhizoma smilacis glabrae, Siegesbeckia herb, longhairy antenoron herb, cutch, mulberry leaf, kudzu-vine root, barbary wolfberry fruit, poria cocos, corn stigma, guava leaf, red yeast rice, cassia seed, hawthorn, lotus leaf, aloe and nano selenium according to different applications of the product. The product has the main characteristics of synchronous adjusting effect on endocrine disorder and obvious effects on adjustment of blood uric acid, blood sugar and blood fat and immunity reinforcement, wide adaptive crowd and positive economic and social significance and is easy to realize industrialized large production.

The invention discloses a bacillus subtilis HL-1 and an application thereof in the respect of soil phosphate dissolving. The strain is collected in China General Microbiological Culture Collection Center (CGMCC) on Aug 24th, 2011, with a collection number of CGMCC No.5175. The 16SrDNA nucleotide sequence of the strain is represented by SEQ ID NO:1. With added diatomite and guava slag adsorbing agent materials, a fermentation broth of the bacillus subtilis HL-1 can be prepared into microbial manure. With the strain provided by the invention, phosphate availability and phosphate fertilizer utilization rate of the soil can be improved, plant growth can be promoted, and soil microbe diversity can be improved. The strain has important significance in reducing chemical fertilizer application, modifying soil micro-ecology, and promoting soil sustainable utilization. The strain has wide application prospect in production practice.

The invention discloses a health-care beverage of guava. The health-care beverage is characterized by comprising the following substances and materials in parts by weight: 30-50 parts of guava, 20-40 parts of bitter gourd, 10-30 parts of Chinese yam, 20-40 parts of folium mori and 5-20 parts of American ginseng. The health-care beverage can be made into dosage forms of tablets, capsules, granules, tea bags and the like; the health-care beverage tastes good, has the original flavor, has the pleasant tea fragrance, is applicable for long-term drinking of glycosuria patients, has the functions of conditioning the insulin secretion and promoting the glycometabolism and fat metabolism, and is capable of conditioning the physiological functions of glycosuria patients, recovering the normal functions of the spleen and stomach and achieving the functions of blood sugar reduction, fat reduction, and glycosuria adjuvant therapy; and when being drunk or taken by ordinary people, the health-care beverage also has the functions of promoting the human body conditioning ability and ensuring the health.

A Tie2 activator containing, as an active ingredient, a hawthorn extract, a starfruit extract, a shellflower extract, a lotus extract, a rooibos extract, an Indian date extract, a Chinese quince extract, a Psidium guava extract, a long pepper extract, a Quillaja extract, a Kouki extract, a ginkgo extract, an oyster extract, a turmeric extract, a chrysanthemum extract, a jujube extract, a Chinese wolfberry extract, a chamomile extract, or a Butcher's Broom extract, or any combination thereof.

The invention provides a highly clear and instant psidiumguajava tea and a preparation process, wherein the tea is produced by mainly adopting fresh or dried young fruit psidiumguajava as a raw material, and has characteristics of convenient production and taking, high safety and no toxic-side effect. According to the present invention, the fresh or dried young fruit psidiumguajava is mainly adopted as the raw material, and cleaning, grinding, ultrasonic enhanced solvent extraction, concentration, purity removing, membrane separation and enrichment, paste forming, spray drying and granulation are performed to obtain the instant psidiumguajava tea; compared with the previous psidiumguajava tea product, the product of the present invention and the preparation process thereof have the following characteristics that: the psidiumguajava fruit, especially the young fruit discarded in the production process is adopted as the raw material to change waste into treasure and obtain the instant psidiumguajava tea product; the psidiumguajava young fruit water extract has a good clinical blood sugar lowering effect, and the preparation process has characteristics of high product yield, low preparation cost, more flavor substance maintaining, and the like; and the highly clear and instant psidiumguajava tea has characteristics of convenient taking, high nutrition and high active ingredient content.

The present invention provides a preparation method of a health-care blueberry beverage, and includes the following raw materials: blueberries, herba dendrobii, ginger, schisandra chinensis, sugar stevia leaves, Chinese wolfberries, guavas, carrots, sapodilla, grapes, actinidia chinensis, haws, bitter apricot kernels, corn, oats, soybeans and green tea. The beverage contains a variety of effective ingredients and nutritional ingredients including polysaccharides, flavonoids, flavonoids, saponins, peptides, vitamins, etc. The beverage can enhance and regulate immune function of human body, protect liver and improve eyesight, regulate intestinal microflora, resist aging, protect skin and beautify appearance, eliminate fatigue, prevent cardiovascular and cerebrovascular diseases, etc.

The invention discloses fertilizer special for guava and a production method of the fertilizer. The fertilizer comprises, by weight, 30-50 parts of decomposed organic fertilizer, 15-20 parts of potassium dihydrogen phosphate, 2-8 parts of urea, 12-18 parts of plant ash, 10-15 parts of lime and 1-3 parts of trace element fertilizer, wherein the decomposed organic fertilizer is the product obtained by adding strains into sisal hemp residues, sugar factory alcohol waste liquid, sugarcane filtered mud and bagasse pith to perform fermentation; the trace element fertilizer includes iron, zinc and boron. The fertilizer special for guava has the advantages that the fertilizer is reasonable in nitrogen, phosphorus and potassium proportion and contains the trace element fertilizer; when the fertilizer is applied, shoot robustness can be achieved, flowering and fruiting can be promoted, soil can be improved, root growth can be promoted, guava quality can be increased at the same time, and guava tree yield can be increased.

The invention discloses a guava fruity vinegar beverage and a processing method thereof. The guava fruity vinegar beverage is prepared from 15-20 parts by weight of guava, 10-12 parts by weight of banana paste, 4-8 parts by weight of lily, 8-10 parts by weight of watermelon peel, 5-8 parts by weight of hazelnut kernel, 3-5 parts by weight of cucumber seed, 2-3 parts by weight of cordate houttuynia, 1-2 parts by weight of roselle, 1-2 parts by weight of dragon's tongue leaf, 2-3 parts by weight of hylocereus undatus, 1-2 parts by weight of Humulus lupulus, 1-2 parts by weight of roughhaired holly root, 1-3 parts by weight of asiatic bilberry leaf, 8-12 parts by weight of a nutrition additive and a proper amount of apple original vinegar and water. The guava fruity vinegar beverage has a sweet and sour taste and rich and balanced nutrition, contains a plurality of traditional Chinese medicine raw materials having effects of clearing heat and removing toxins, helps digestion, improves appetite, has functions of clearing heart fire and moistening lung, and reducing internal heat and relieving restlessness, is benefit for human health and is suitable for being drunk by various people.

The invention discloses avena nuda-sticky rice-honey wine and a preparation method thereof. The avena nuda-sticky rice-honey wine is characterized by being prepared from the following raw materials in parts by weight: 40-50 parts of honey, 20-30 parts of sticky rice, 2-3 parts of distiller yeast, 3-4 parts of lucid ganoderma, 50-55 parts of whole avena nuda, 3-4 parts of semen cassiae, 4-5 parts of bitter gourd seeds, 8-10 parts of white kidney bean, 5-8 parts of mung bean, 2-3 parts of gynostemma pentaphylla, 4-5 parts of guava leaf, 2-3 parts of flos hibisci mutabilis, 3-4 parts of leek seeds, 1-2 parts of madake bamboo root and a proper amount of water. The avena nuda-sticky rice-honey wine disclosed by the invention combines the nutritional ingredients of avena nuda and sticky rice; by adding the traditional Chinese medicine extract liquid with a healthcare function, the wine has the functions of replenishing qi and invigorating spleen, nourishing and strengthening body, keeping health and beautifying, delaying senescence and the like; and by long-time drinking, the wine can promote sleep and metabolism.

The invention discloses traditional Chinese medicine hen feed capable of improving egg quality and a processing method of the feed, belonging to the field of hen feed. The feed comprises puffed corn, puffed bean pulp, green soybean dough cake, Chinese cabbage, wheat bran, salt, meat and bone meal, protein powder and traditional Chinese medicine components, wherein the traditional Chinese medicine components comprise unprepared malt, astragalus membranaceus, gorgon fruit, atractylodes macrocephala, liquorice, rhizoma drynariae, dendrobe, lily, radix polygonati officinalis, adenophora tetraphylla, hawthorn, Chinese pulsatilla root, golden cypress, brucea javanica, dried tangerine or orange peel, date, radix paeoniae alba, angelica sinensis, dried rehamnnia root, Chinese yam, qingming willow, lalang grass rhizome, Indian strawberry, Japan cypress leaves, eclipta prostrate, artocarpus hypargyreus, honewort and guava. The processing method comprises the following steps: (1) extracting a crude traditional Chinese medicine liquid sample; (2) finely preparing a traditional Chinese medicine liquid; (3) preparing the traditional Chinese medicines; and (4) preparing the feed for hens. The traditional Chinese medicine hen feed can effectively improve the intestines and stomach function and the ovarian function of hens, can improve the egg quality and is reasonable in formula, free of antibiotics chemical synthesis medicine, and safe and harmless for human bodies after people eat the eggs.

A sugar-free guava and papaya beverage and a preparation method thereof. The sugar-free guava and papaya drinks are composed of the following components: 5-10% guava juice, 10-15% papaya juice, 2-4% xylitol, 0.06-0.075% aspartame, 0.2-0.45% Xanthan gum, 0.03% potassium sorbate and the balance drinking water. The sugar-free guava and papaya drink provided by the invention is made from guava juice and papaya juice, which is not only rich in various beneficial nutrients for human body, but also has a good taste, and is not limited by the fruit harvest season. Therefore, consumers can eat it all year round, so the market application prospect is very broad. In addition, this drink does not contain sugar, so it is very suitable for diabetics. In addition, the preparation method is simple and convenient to operate.

The invention provides a guava colletotrichum orbiculare specificity PCR detecting primer and a detecting method of guava colletotrichum orbiculare. The primer comprises an upstream primer body CGF:5'-CGGGTAGGGTCTCCGTGA-3'and a downstream primer body CGR:5'-CCCAGTGCGAGACGT AAAGT-3', the PCR detecting method of guava colletotrichum orbiculare is built on the basis of the primer, and an amplification product with the fragment of 390 bp can be specifically amplified in guava colletotrichum orbiculare pure DNA and diseased tissue with guava colletotrichum orbiculare by agarose gel electrophoresis. When the detecting primer and the detecting method are used for detecting guava colletotrichum orbiculare, the advantages of being high in accuracy, high in specificity, high in sensitivity, simple and fast in detecting process operation are achieved, the detecting primer and the detecting method can be used for early diagnosis of guava anthracnose and monitoring and authenticating of germs in fields, and reliable technological and theoretical foundations are provided for prevention and treatment of guava anthracnose.

The present invention provides a method of producing a triterpene composition wherein callus induced from banaba, loquat, perilla or guava is cultured with indoleacetic acid and another plant hormone, and a triterpene composition containing at least one selected from the group consisting of corosolic acid, tormentic acid, 2α,19α-dihydroxy-3-oxo-urs-12-en-28-oic acid and maslinic acid is obtained from the cultured callus.

The invention discloses a blueberry, tremella and honey dew, and a processing method thereof. The blueberry, tremella and honey dew comprises, by weight, 30-50 parts of blueberry, 10-20 parts of tremella, 15-30 parts of cherry tomato, 15-20 parts of water caltrop pulp, 6-10 parts of Radix Puerariae, 5-10 parts of Hemerocallis citrina powder, 1-2 parts of peach root, 1-2 parts of Peperomia dindygulensis Miq., 2-3 parts of guava root, 1-2 parts of root of Japanese banana, 1-2 parts of greenish lily seed, 2-3 parts of Alcea rosea, 1-2 parts of leaf of Prunus Humilis Bunge, 8-12 parts of a food additive, 10-15 parts of honey, and a proper amount of water. The blueberry, tremella and honey dew has the characteristics of abundant and balanced nutrition, smooth and sweet mouthfeel, and unique flavor, and the compatibility of other traditional Chinese medicinal health components enhances the health efficacy of the dew, makes the dew have the efficacies of yin nourishing, lung moistening, heart nourishing, mind tranquilizing, stomach nourishing, intestine clearing, lipid lowering and pressure reducing, and makes the dew beneficial for the human body health.

The present invention discloses a traditional Chinese medicine feed additive for poultry dysentery treatment. The feed additive is characterized in that raw materials of the traditional Chinese medicine feed additive are as follows, by weight: 20 to 30 parts of spanishneedles herbs, 10 to 15 parts of psidium guajava leaves, 15 to 20 parts of rhodomyrtus tomentosa leaves, and 15 to 20 parts of mongolian dandelion herbs. The traditional Chinese medicine has effects of spleen and stomach strengthening, astringing and detoxicating, blood circulation activating, wind-evil dispelling, and digestion promoting, and particularly has significant effects of dysentery treating, gastrointestinal function recovering and normal digestive function maintaining. According to the present invention, the traditional Chinese medicine has characteristics of simple combination of the raw materials, low costs, short treatment time, a vaccination rate of 99%, and a cure rate up to 98%.

The invention describes the preparation, isolation and use of an extract of guava fruit for the treatment of a disease or condition related with, caused by or mediated by dipeptidyl peptidase IV.

The diarrhea treating Chinese medicine composition is prepared with Chinese goldthread, skullcap root, white peony root, patchouly, guava leaf and tuckahoe as material. It has the functions of clearing away heat and toxic material, moisturizing and stopping diarrhea, and can kill diarrhea causing pathogenic bacteria and viruses to cure acute infectious diarrhea in high efficiency, quickly and safely.

The invention relates to a cleanser and discloses an acne-removal cleanser and a preparation method thereof. The acne-removal cleanser is prepared from 0.45%-2.52% by weight of a guava extract and the balance of auxiliaries. The cleanser can be further prepared from the guava extract, PEG-160 sorbitan triisostearate, glycerin and the like. The acne-removal cleanser has remarkable efficacy on treatment of whelks, acne and the like, the whelks, the acne and the like cannot relapse after the cleanser is used for a long time, and skin is fine and glossy and has good elasticity.

The invention discloses a sleeping mask containing sweet pea extract solution and a preparation method thereof. The sleeping mask containing the sweet pea extract solution disclosed by the invention is characterized by comprising the following components in percentage by weight: 2.0-7.5% of cyclomethicone, 1.2-5.8% of caprylic / capric triglyceride, 1.5-5.5% of camellia oil, 15-25% of glycerinum, 1.0-6.0% of dipropylene glycol, 1.0-5.5% of hydroxyethyl acrylate / acrylamide dimethyl sodium taurate copolymer, 0.2-0.6% of methylparaben, 0.5-2.5% of allantoin, 0-0.8% of xanthan gum, 0.2-0.6% of hydroxyethyl cellulose, 0.2-0.6% of EDTA (Ethylene Diamine Tetraacetic Acid) disodium, 0.5-2.5% of sodium hyaluronate, 0.5-2.5% of dipotassium glycyrrhizinate, 1.0-4.5% of viola tricolor extract, 1.5-4.5% of guava extract, 2.0-7.0% of betaine, 0.5-2.5% of pearl powder, 0.8-1.3% of sweet pea extract solution, 0.01-0.03% of essence, proper preservative, and the balance of deionized water. The sleeping mask containing the sweet pea extract solution disclosed by the invention contains gel substrate as the carrier, therefore, nutritional ingredients are absorbed more easily; the effects of nourishing, moisturizing, resisting wrinkling and resisting aging are obvious.

The invention discloses a skin moisturizing and repairing composition and a preparation method thereof. The composition includes water, butanediol, glycerin, 1,2-pentanediol, sodium PCA, purslane extract, lotus leaf extract, tea leaf extract, guava leaf extract, Angelica gigas root extract, phenoxyethanol, a sodium salt of an acrylic acid / MA copolymer, hydroxyethyl cellulose, caprylyl glycol, 1,6-hexanediol, nicotinamide, hydroxyphenylpropionamidobenzoic acid, ceramide 3, dipotassium glycyrrhizinate and sodium hyaluronate. The invention also provides the preparation method of the skin moisturizing and repairing composition. The composition has a good product stability, can penetrate into deep skins, has a good moisturizing effect on the skins, also can remove excessive free radicals and promote skin barrier recovery, and can be used for the daily care of various types of skins, especially the protection and care of sensitive skins.

This invention publicized the formula of one kind guava essence, which was mainly composed by trim ethylene glycol, the ethyl benzoate, citral, ethyl acetate, ethyl butyrate, phytol, ethanoic acid leaf alcohol ester, lactic acid ethyl ester, lauric acid ethyl ester, using the inherent fragrance compound in the natural guava juice to draw up the formula to make the guava essence. Take the guava essence as food additive to use, then strengthen final product flavor of the food and the drink, and bring the natural feeling taste. It make the taste and fragrance quality to be higher than the domestic similar essence level.

The invention discloses a preparation method of a guava fruit tablet. According to the preparation method, guavas being 90% of mature is taken as raw materials and the guavas is pressed into grain tablets. The preparation method comprises the following machining steps of: purchasing raw materials, treating the raw materials, crushing fruits, carrying out primary colloid milling, preparing a helicase solution, carrying out colloid milling on materials and helicase, rapidly freezing the materials, carrying out freeze-drying in vacuum, tabletting and packaging. The fruit tablet takes the guavas as the raw materials; the guavas not only have a sweet taste and are enriched in nutrition, but also have the very good medical effects of regulating blood sugar level; the whole guavas can be used as the raw materials to be used and the utilization rate of the raw materials is high; in a preparation process of the fruit tablet, other components are not added and the fruit tablet keeps the original flavor of the guavas; after the colloid milling, the fineness of the guava materials can reach more than 95 meshes and the guava fruit tablet is suitable for the mouth feel of people; and in production, storage and quality guaranteeing processes of the fruit tablet, substances, such as condiments, pigments, preservatives and the like, which are harmful to a human body, are not added, so that the food safety is guaranteed.

The invention discloses a caulis dendrobii hypoglycemic solid drink and a preparation method thereof, and the caulis dendrobii hypoglycemic solid drink is composed of the following raw materials by weight: 35-45 parts of dendrobium huoshanense, 20-30 parts of carambola, 10-15 parts of raspberry, 5-10 parts of aloe, 3-6 parts of radices trichosanthis, 2-4 parts of ganoderma lucidum spore powder, 4-8 parts of balsam pear seed powder, 2.5-4.5 parts of water chestnut leaf, 4-6 parts of guava leaf, 3-5 parts of corn silk, 1-2 parts of ginseng flower, 2-3 parts of olive leaf, 1-2 parts of glucomannan and a proper amount of water. The caulis dendrobii hypoglycemic solid drink can promote and balance human body sugar metabolism, protects and repairs islet cells, reverses the complications, makes blood sugar content gradually tended to be normal, can effectively control blood sugar and lower blood sugar, is especially suitable for diabetics to drink, has good nutrition and health care function when drunk by normal people, opens up a new way for the deep processing of caulis dendrobii, improves the additional value and economic benefit of the caulis dendrobii, and is applicable to large-scale production.

The invention discloses aloe wine and a preparation method thereof. The aloe wine is prepared from the following raw materials in parts by weight: 200-250 parts of grape, 20-30 parts of guava, 18-20 parts of milpa alta, 25-35 parts of aloe, 10-14 parts of chicory, 20-30 parts of water bamboo,10-15 parts of emblic leafflower fruit, 2-3 parts of plumeria rubra, 2-3 parts of pot marigold, 2-4 parts of pineapple leaf, 2-3 parts of hawthorn leaf, 3-5 parts of momordica grosvenori flower, 1-3 parts of sauropus spatulifolius, 2-3 parts of flos lablab album, 1-2 parts of towel gourd flower, 40-60 parts of lemon juice, 6-9 parts of yeast, 20-30 parts of malt syrup and 9-12 parts of nutrition additives. The aloe wine prepared is mellow, normal, fragrant and sweet in taste, such components as the aloe and the guava are added to enrich the nutrient and increase the cool and refreshing taste, and vinegar steamed traditional Chinese medicine components are added to promote beneficial components to separate out, improve the health effect, ensure the functions of engendering liquid and appetizing, clearing lung and tonifying spleen, clearing away heart-fire and relieving restlessness and the like, perfect the digestive function and improve the appetite.

The present invention provides a blueberry health beverage, comprising the following raw materials: blueberry, dendrobium, ginger, schisandra chinensis, stevia, Chinese wolfberry, guava, carrot, sapodilla, grape, kiwi fruit, hawthorn fruit, almond, corn, oat, soybean and green tea. The blueberry health beverage comprises a plurality of functional components and and nutrient components, such as polysaccharides, flavonoids, triterpenoids, saponins, polypeptides and vitamins. The prevent invention has the efficacy of strengthening and regulating human immunity, protecting the liver and improving eyesight, regulating intestinal flora, anti-aging, skincare cosmetology, eliminating fatigue, preventing the cardio-cerebrovascular disease, and the like.

The invention discloses a method for pearl-guava softwood cutting by a simple facility. The method comprises: preparing a cutting facility, preparing a seedling bed and supporting facilities, preparing and processing a cutting medium, selecting and processing cutting woods, preparing a composite rooting agent and rapidly dipping the cutting woods, supplementing hormone and nutrients for the cutting woods, controlling cutting environment, controlling pests of seedlings, and hardening seedlings and outplanting. The method is simple in technological process, low in production cost, short in seedling raising period, and high in cutting survival rate, and the seedlings grow in order, root systems are developed, and seedling culturing facility is simple. The method has good production significance and popularization prospect.

The invention relates to Chinese patent medicine for treating diabetes mellitus and a preparation method thereof, which belongs to the technical field of Chinese patent medicine. The Chinese patent medicine is composed of the following Chinese traditional medicine materials in weight percentage: 30 to 50 portions of trichosanthin, 60 to 70 portions of schisandra chinensis, 50 to 60 portions of raw astragalus, 50 to 60 portions of polygonatum, 100 to 120 portions of plaster stone, 60 to 70 portions of ginseng, 30 to 40 portions of rehmanniae radix, steamed rehmannia, 70 to 80 portions of gegen, 20 to 30 portions of dried ginger, 30 to 30 portions of rhizome polygonatum, 30 to 40 portions of Chinese wolfberry root bark, 50 to 60 portions of gizzard membrane, 30 to 40 portions of loosestrife, 110 to 130 portions of folium pyrrosiae, 200 to 300 portions of balsam pear juice and 200 to 300 portions of guava leaf juice. The Chinese patent medicine is prepared through the processes of grinding, decocting, air drying, and the like. The compositions of the invention has the efficacies on nourishing liver and kidney, strengthening spleen and invigorating stomach, promoting fluid production extinguish thirst, lowering adverse qi for regulating stomach and decreasing sugar and lipid, and has favorable effect on the treatment of diabetes mellitus.

The invention provides a guava hypoglycemic active component, and a preparation method and use thereof. The method comprises the following steps: crushing a raw material of guava leaves; carrying out reflux extraction by 8-10fold by volume of 50% ethanol; carrying out vacuum concentration below 60 DEG C; dispersing the obtained ethanol extract into water; fully extracting by adopting ethyl acetate after petroleum ether is extracted; carrying out vacuum concentration below 60 DEG C; filtering the obtained ethyl acetate extract by a 60-200mesh polyamide chromatographic column; eluting ethanol water from low to high in a gradient manner; collecting a component which is eluted by ethanol of which the concentration is 30-50%, continuing to filter by the 60-200mesh polyamide chromatographic column after vacuum concentration below 60 DEG C; carrying out isocratic elution by 30% ethanol after eluting by 10% ethanol; carrying out vacuum concentration on eluent below 60 DEG C, and recrystallizing by a 70% ethanol solvent, so as to obtain the hypoglycemic active component. The method disclosed by the invention is simple and convenient; chemical components of an effective part are clear in composition, and good in chemical stability. By adopting the guava hypoglycemic active component disclosed by the invention, alloxan-induced hyperglycemia can be significantly reduced, and the guava hypoglycemic active component can be applied to preparation of hypoglycemic medicaments or health-care products.

The present invention relates to an α-amylase activity inhibitor, and to food and beverages comprising the α-amylase activity inhibitor. The α-amylase activity inhibitor of the present invention exhibits remarkably excellent α-amylase inhibitory activity as compared with guava extract. Accordingly, food and beverages containing the α-amylase activity inhibitor are diet food and beverages suitable for people of high blood-sugar level or hyderlipidemia.