69 results about "Propanedial" patented technology

The invention discloses a method for increasing storage and fresh-keeping effect of orange, which comprises the following steps: under the condition that the temperature is 10-12 DEG C and the relative humidity is 80%-90%, immersing the fresh oranges by 5% of calcium chloride aqueous solution for 30 minutes, then removing and draining, placing the drained oranges in a high-voltage electrostatic field composed of two parallel plateaus for connecting a high-voltage generator, stacking the oranges for 1-3 layer of height, treating for 100-120 minutes / day in the electric field of -200--240kv / m, continuously treating for 2-3 days, and then placing the oranges in a cold storage at 10-12 DEG C for storage. According to the treated oranges, the breathing strength of the oranges is obviously inhibited at a storage period, decrease of a soluble solid, VC, organic acidity at the storage anaphase is delayed, the accumulation of malondialdehyde content is inhibited; rate of weight loss of orange is reduced, the activity of orange pectase and peroxidase is reduced, the original freshness and color of fruits can be better kept, and the local flavor is better.

The invention discloses a method for improving the drought resistance of oil Paeonia suffruticosa Andr. by adopting methyl jasmonate. The methyl jasmonate is adopted to induce the oil Paeonia suffruticosa Andr. to generate the drought resistance. The method comprises the following steps that 1), triennial oil Paeonia suffruticosa Andr. paeonia ostii seedlings which are consistent in growth vigor and free of plant diseases and insect pests are selected in October to be cultivated; 2), the paeonia ostii seedlings are cultured at room temperature until May of the next year, and water management is carried out during the period; and 3), the methyl jasmonate is sprayed to the oil Paeonia suffruticosa Andr. once every 3 days, and the methyl jasmonate is sprayed twice in total, and the drought-resistant oil Paeonia suffruticosa Andr. is obtained. According to the method for improving the drought resistance of the oil Paeonia suffruticosa Andr. by adopting methyl jasmonate, after the methyl jasmonate is adopted for induction treatment, the net photosynthetic rate, the transpiration rate, the intercellular CO2 concentration, the stomatal conductance, the free proline content and the solublesugar content in leaves are in the increase, the malondialdehyde content, the chlorophyll a content, the chlorophyll b content and the carotenoid content are in the decrease, the net photosynthetic rate of the paeonia ostii leaves is increased, the damage of drought stress to the Paeonia suffruticosa Andr. is reduced, and the drought stress resistance of the paeonia ostii is enhanced.

The invention discloses an external Chinese medicine composition with the effect of inhibiting skin non-enzyme glycosylation. The Chinese medicine composition is made of the following raw materials in proportions by weight: 10-30 dried tangerine peel, 10-30 dried licorice, Perilla 10-30, Cardamom 10-30, Tsaoko 10-30. The external application of the traditional Chinese medicine extract of the present invention has better inhibitory effect on the early and mid-stage products of non-enzymatic glycosylation. The inhibitory effect at the concentration of 2% is obviously better than that of the positive drug aminoguanidine. The extract of the present invention has a better inhibitory effect on the final product of fibroblast malondialdehyde MDA in the lipid peroxidation reaction at a low concentration. Experiments on volunteers showed that the facial mask prepared from the extract of the present invention significantly increased the degree of redness and decreased the degree of yellowness of the facial skin, had better anti-yellowing effect, and improved the luster of the skin to a certain extent.

The invention discloses a method for improving the drought resistance of oil paeonia suffruticosa by adopting jasmonic acid. The jasmonic acid is adopted to induce the oil paeonia suffruticosa to generate the drought resistance. The method comprises the following steps that 1), triennial oil paeonia suffruticosa seedlings which are consistent in growth vigor and free of plant diseases and insect pests are selected in October to be cultivated; 2), the triennial oil paeonia suffruticosa seedlings are cultured in a greenhouse at room temperature until May of the next year, and normal water management is carried out during the period; and 3), the jasmonic acid is sprayed to the whole oil paeonia suffruticosa plants until the upper and lower surfaces of leaves drip the jasmonic acid, the jasmonic acid is sprayed once every 3 days and is sprayed twice in total, and the drought-resistant oil paeonia suffruticosa is obtained. According to the method for improving the drought resistance of theoil paeonia suffruticosa by adopting the jasmonic acid, in the post-growth stage of the oil paeonia suffruticosa, the exogenous jasmonic acid with different concentrations is adopted for induction, the osmotic regulation substance content and the photosynthetic pigment content (the chlorophyll a content, the chlorophyll b content and the carotenoid content) of the oil paeonia suffruticosa under drought stress are remarkably improved, the malondialdehyde content is reduced, the cell membrane lipid peroxidation degree is reduced, photosynthesis of the paeonia ostii is promoted, and the defense capability of the paeonia ostii on drought stress is enhanced.