CN1408246A

CN1408246A - Skin peeling technology for walnut kernel

Info

Publication number: CN1408246A
Application number: CN01141311A
Authority: CN
Inventors: 荣建民
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-26
Filing date: 2001-09-26
Publication date: 2003-04-09

Abstract

The walnut kernel skin peeling technology is developed for producing white walnut kernel without skin. The present invention peels skin of walnut kernel through strong alkali etching, hydrogen peroxide oxidation and disinfection in short time. The said process can peel skin of walnut kernel and thus eliminate the bitter and astringent taste of walnut completely and perfectly without affecting the nutritive components.

Description

The skin peeling technology of walnut kernel

Now skin peeling technology A, the B of Shen Qing walnut kernel belong to nontoxic biochemical skin peeling technology.One, invent the purpose of these two technology:

1, walnut mainly originates from western part, southwest and the Northwest in China.The Party Central Committee calls for response, some contribution of the western do of exploitation.

2, improve the class of agricultural byproducts, change the old looks of the low-grade walnut kernel of traditional product, become elaboration " white jade walnut kernel ".

3, make full use of resources advantage, be the walnut kernel series product development, reach deep processing high-quality raw materials is provided, fabulous is to guarantee exported product, enhances competitiveness.

4, on the basis of not destroying walnut kernel nutrition, removed the bitter taste of coat, make walnut kernel tastier.

5, improving the grade simultaneously by the hulled walnut kernel of deep processing, added value also improves simultaneously, and the price of originally purple clothing walnut kernel can be brought up to 25-30 unit/kg always at 14-15 unit/kg after the processing fully, can increase peasant's income, also improve peasant's enthusiasm simultaneously.Two, the prescription of walnut kernel skin peeling technology: the walnut kernel agent prescription A that undresses: concentration 30%-45% concentration of hydrogen peroxide 80%-90% NaOH

+ ↓ walnut kernel

Ratio 80%-90% 10%-20%

Body lotion submergence kernel, treated that walnut kernel coat and the ditch place of returning coat purified in 10-15 minute after, take out citric acid solution neutralization with 5%-10%, took out in 10 minutes, use the circulating water rinse, 10-15 minute taking-up airing.The walnut kernel agent prescription B that undresses: concentration 30%-45% concentration of hydrogen peroxide 25%-35% ammoniacal liquor

+ ↓ walnut kernel

Ratio 70%-80% 20%-30%

Body lotion submergence kernel, treated that walnut kernel coat and the ditch place of returning coat purified in 10-15 minute after, take out citric acid solution neutralization with 5%-10%, took out in 10 minutes, use the circulating water rinse, 10-15 minute taking-up airing.Three, this technology and preceding method relatively have following characteristics:

Advantage:

1, with traditional manual peeling method relatively, manual method can be described as less, slowly, poor, expense, this technology is many, fast, good, province.

2, peeling labour cost by hand is many, and labour intensity is big, and weak effect can only be shelled 5kg for each person every day, and manually few with present technique, 1-2 people can operate, the 1000kg that can undress at least for each person every day, and also the rate of undressing reaches 99%, and percentage of head rice reaches 99%.

3, with the method (retrieving before the application) of Shaanxi Province Hanzhong City cannery with HCS and water under high pressure bring ripe mashed, broken, damage shortcoming such as nutritional labeling.This technology has the inherent quality do not destroyed, nutrition remains unchanged, and is mashed, not broken, defeature not, percentage of head rice height.And sterilization, sterilization, the back color and luster of undressing is ivory white.Can provide the exported product of guaranteeing both quality and quantity fully.

4, this technology have small investment, go up detective, between tables of equipment, raw material easily purchases, the saving of labor, save time.Be fit to medium-sized and small enterprises and family and do factory.

Shortcoming:

1, prescription B: in operating process, can volatilize pungent ammonia odor.

Claims

Prescription: A

Hydrogen peroxide hydro-oxidation sodium after stirring evenly, is put into walnut kernel, treats that the walnut kernel coat purifies (comprising Gou Huichu) and pulls out, puts into the citric acid solution neutralization again, pulls out, uses the circulating water rinse.

Prescription: B

Hydrogen peroxide adds ammoniacal liquor, after stirring evenly, puts into walnut kernel, treats that the walnut kernel coat purifies (comprising Gou Huichu) and pulls out, puts into the citric acid solution neutralization again, pulls out, uses the circulating water rinse.