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A kind of processing method of instant lotus seed leisure food

A processing method and technology of snack food, which is applied in the field of food processing, can solve the problems of reducing the nutritional value of products, the taste of products is not delicate enough, and the nutrient solution is not available, etc., and achieve the effect of facilitating large-scale industrial production, bright color and reducing loss

Active Publication Date: 2017-04-26
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned processes all boil and ripen lotus seeds, which will cause the loss of original nutrients and reduce the nutritional value of the product during actual operation; in addition, natural immersion at normal pressure is used, and the nutrient solution cannot quickly and evenly penetrate into the lotus seed cells; Otherwise, if slow freezing is adopted, large ice crystals are likely to form in the tissue, and the taste of the product after dehydration in the oil bath is not delicate enough, and the oil content is high

Method used

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  • A kind of processing method of instant lotus seed leisure food
  • A kind of processing method of instant lotus seed leisure food
  • A kind of processing method of instant lotus seed leisure food

Examples

Experimental program
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Effect test

Embodiment 1

[0057] Soak peeled, peeled and cored fresh lotus seeds in 0.01% sodium ascorbate solution for 5-10 minutes, remove them, put them into a rice steamer, and ripen them for 10 minutes under 0.2MPa steam pressure; put the ripened lotus seeds Put it in an ultrasonic vacuum cleaning machine, the impregnating liquid is 20% fructose syrup, 2% salt, 10% maltodextrin, the ultrasonic working frequency is 22kHz, the power is 800W, the vacuum degree is -0.06MPa, and the impregnating treatment is 20 minutes; Put it in a liquid nitrogen fluidized bed quick-freezer, and the liquid nitrogen injection condition is 0.001kg / s. When the center temperature of the lotus seed material reaches -15°C, transfer it to a freezer at -40°C for standby; freeze 150Kg The transparent lotus seeds are directly divided into 4 stainless steel cages, and the lid is tightly put into the vacuum kettle for vacuum oil bath dehydration. Pump the tea seed oil back to the oil storage tank, start the motor for centrifugal ...

Embodiment 2

[0060] Soak peeled, peeled and cored fresh lotus seeds in 0.01% sodium ascorbate solution for 5-10 minutes, remove them, put them into a rice steamer, and ripen them for 10 minutes under 0.2MPa steam pressure; put the ripened lotus seeds Put it in an ultrasonic vacuum cleaning machine, the impregnation liquid is 15% fructose syrup, 1% salt, 15% maltodextrin, the ultrasonic working frequency is 22kHz, the power is 1000W, the vacuum degree is -0.08MPa, and the impregnation treatment is 15 minutes; Place in a liquid nitrogen fluidized bed quick-freezing machine, and the liquid nitrogen injection condition is 0.001kg / s. When the core temperature of the lotus seed material reaches -15°C, transfer it to a freezer at -40°C for standby; freeze 100Kg The transparent lotus seeds are directly divided into 4 stainless steel cages, and the lid is tightly put into the vacuum kettle for vacuum oil bath dehydration. Pump the tea seed oil back to the oil storage tank, start the motor for centr...

Embodiment 3

[0062] Soak peeled, peeled and cored fresh lotus seeds in 0.01% sodium ascorbate solution for 5-10 minutes, remove them, put them into a rice steamer, and ripen them for 5 minutes under 0.4MPa steam pressure; put the ripened lotus seeds Put it in an ultrasonic vacuum cleaning machine, the impregnating liquid is 20% fructose syrup, 2% salt, 15% maltodextrin, the ultrasonic working frequency is 22kHz, the power is 800W, the vacuum degree is -0.06MPa, and the impregnating treatment is 20 minutes; Put it in a liquid nitrogen fluidized bed quick-freezer, and the liquid nitrogen injection condition is 0.001kg / s. When the center temperature of the lotus seed material reaches -15°C, transfer it to a freezer at -40°C for standby; freeze 150Kg The transparent lotus seeds are directly divided into 4 stainless steel cages, and the lid is tightly put into a vacuum kettle for vacuum oil bath dehydration. The vacuum degree is -0.095MPa, and the palm oil temperature is 90°C. The oil pump retu...

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Abstract

The invention belongs to the technical field of food processing, specifically relates to a processing method of lotus seeds, and in particular relates to a processing method of ready-to-eat lotus seed leisure food. The processing method comprises the steps of processing the raw material, carrying out steam curing, carrying out ultrasonic-vacuum impregnation, carrying out liquid nitrogen cryogenic freezing, carrying out vacuum low-temperature oil bath dehydration, carrying out vacuum centrifugal deoiling, seasoning and packaging. Aiming at the defects and the problems in the existing processing technology, the invention provides the processing method of the ready-to-eat lotus seed leisure food, so that the technological difficulties that products processed by lotus seeds are easily rawish and are easily aged are broken through, and the original nutritional ingredients of the lotus seeds are maintained to the utmost extent. The lotus seeds processed by the method are crisp in mouthfeel, full in state, bright in color and low in oil content (which is less than below 13%), and do not contain acrylamide, thus being a safe and high-grade ready-to-eat leisure food.

Description

technical field [0001] The invention belongs to the technical field of food processing, in particular it relates to a lotus seed processing method, in particular to a processing method of instant lotus seed snack food. Background technique [0002] Lotus seed is an important specialty economic resource in my country. It is the mature seed of Nelumbo nubifera Gaertn., which is mainly distributed in Fujian, Jiangxi, Hubei, Jiangsu and other places. Since ancient times, lotus seeds have been widely eaten as a high-grade nourishing food. According to the "Compendium of Materia Medica", lotus seeds have the functions of "long-term consumption, light body and endurance, no hunger and prolonging life, benefiting the heart and kidney, solidifying essence, strengthening muscles and bones, The effect of nourishing deficiency and damage, benefiting eyes and ears has been listed by the Ministry of Health of my country as a list of 87 kinds of dual-purpose foods for medicine and food. Lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L25/00A23B9/00A23B9/08A23B9/02
Inventor 田玉庭郑宝东张宁宁郭泽镔曾绍校刘文聪张怡陈秉彦
Owner FUJIAN AGRI & FORESTRY UNIV