CN1263739A

CN1263739A - Ordinary-temp antistaling process for raw wolfberry fruit juice

Info

Publication number: CN1263739A
Application number: CN 00103020
Authority: CN
Inventors: 潘泰安; 王自贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-29
Filing date: 2000-02-29
Publication date: 2000-08-23
Anticipated expiration: 2020-02-29
Also published as: CN1163158C

Abstract

An ordinary-temp antistaling process for raw wolfberry fruit juice includes such steps as selecting fresh fruit, reducing contamination of agricultural chemicals, washing, sterilization, washing with aseptic softened water, beating, squeezing juice, breaking in colloid mill, high-temp sterilizing, hot and aseptic pouring in containers, sealing and cooling. Its advantages is long quality guarentee period up to 12-18 months without any antiseptic.

Description

Ordinary-temp antistaling process for raw wolfberry fruit juice

The present invention relates to the processing technology of a kind of processing method of fruit, particularly a kind of Lycium chinense juice.

The fresh-keeping of Lycium chinense juice is a difficult problem always, generally all need also need add anticorrisive agent through behind the high-temperature sterilization, pure manufacture of aseptic line costs an arm and a leg, production environment requires very strict, production cost is higher, thereby Lycium chinense juice generally all is by freeze preservation, and cryogenic temperature is generally at-18 ℃, the Lycium chinense juice that is added with anticorrisive agent is restricted in the use of brewing industry, and the Lycium chinense juice cost of freeze preservation is too high, and when thawing, ice crystal easily produces the juice separation to the destruction of pulp.

The purpose of this invention is to provide a kind of not adding preservative agent, not freezing, investment and all lower ordinary-temp antistaling process for raw wolfberry fruit juice of production cost.

The present invention realizes by following scheme:

Ordinary-temp antistaling process for raw wolfberry fruit juice, its technical process comprise that medlar fresh fruit selects, reduces that pesticide-treated, rinsing, sterilization, sterile demineralized water are cleaned, making beating is squeezed the juice, colloid mill fragmentation, high temperature sterilization, aseptic hot filling, seal cooling;

Above-mentioned reduction pesticide-treated is medlar fresh fruit to be soaked in contain in potassium permanganate and the organic acid solution 10-20 minute, uses the flowing water rinsing then, and potassium permanganate and organic acid concentration are respectively thousand/0.1-0.5 (W) and 0.1-0.4% (W);

Above-mentioned sterilization is that medlar fresh fruit is placed chlorine dioxide content is solution 5-20 minute of 0.1-5% (W);

Above-mentioned sterilization also can be that medlar fresh fruit was placed solution 5-20 minute that contains Peracetic acid 0.1-3% (W);

The condition of above-mentioned high temperature sterilization is temperature 70-85 ℃, time 20-40 minute;

Above-mentioned aseptic hot canning be behind high temperature sterilization, take advantage of heat with aseptic complex pocket carry out canned, the material of aseptic complex pocket is the PP/PET-A1/PE composite.

The present invention has realized the normal-temperature fresh-keeping of Lycium chinense juice under the condition that does not add any anticorrisive agent, can remove simultaneously agricultural chemicals, pesticide residues in the raw material again, the pure natural property that has kept Normal juice, various nutritions have been preserved effectively, can be used for brewery industry, its shelf-life generally reaches 12-18 month.

Embodiment 1: the medlar fresh fruit of plucking carries out hand picking, and impurity such as corrupt fruit, carpopodium, fruit leaf are removed, and reduces pesticide-treated then, and preparation contains KMnO ₄Thousand/0.1-0.5 (W), contain the solution of organic acid (tartaric acid or citric acid) 0.1-0.4% (W), medlar fresh fruit was dipped in wherein 10-20 minute, it is clean with the flowing water rinsing to pull the back out, carries out sterilization then, and preparation contains ClO ₂The aqueous solution of 0.1-5% (W), fruit was dipped in it 5-20 minute, taking out the back rinses well with sterile demineralized water, enter in the beater, squeezing the juice with spiral juice extractor in broken back, also can directly press twice with juice extractor without beater, the juice of squeezing out enters in the colloid mill further broken, send into then and carry out high temperature sterilization in the Cooling or heating jar, sterilization temperature is controlled at 70-85 ℃, and the time was controlled at 20-40 minute, carry out hot filling immediately, the aseptic complex pocket of PP/PET-A1/PE is adopted in can, and the can capacity can be divided into 5kg, 10kg, 20kg, 50kg, 100kg etc. seal after can finishes immediately, be placed on after sealing and be cooled to room temperature in the flowing water, deposit under the normal temperature.

Embodiment 2: the solution contain Peracetic acid 0.1-3% (W) is adopted in sterilization, and fruit was dipped in it 5-20 minute, and other technical process is identical with example 1.

Claims

1. ordinary-temp antistaling process for raw wolfberry fruit juice is characterized in that its technical process comprises that medlar fresh fruit selects, reduces that pesticide-treated, rinsing, sterilization, sterile demineralized water are cleaned, making beating is squeezed the juice, colloid mill fragmentation, high temperature sterilization, aseptic hot filling, seals cooling.

2. ordinary-temp antistaling process for raw wolfberry fruit juice according to claim 1, it is characterized in that above-mentioned reduction pesticide-treated is medlar fresh fruit to be soaked in contain in potassium permanganate and the organic acid solution 10-20 minute, use the flowing water rinsing then, potassium permanganate and organic acid concentration are respectively thousand/0.1-0.5 (W) and 0.1-0.4% (W).

3. ordinary-temp antistaling process for raw wolfberry fruit juice according to claim 1 is characterized in that above-mentioned sterilization is that medlar fresh fruit is placed chlorine dioxide content is solution 5-20 minute of 0.1-5% (W).

4. ordinary-temp antistaling process for raw wolfberry fruit juice according to claim 1 is characterized in that above-mentioned sterilization also can be that medlar fresh fruit was placed solution 5-20 minute that contains Peracetic acid 0.1-3% (W).

5. ordinary-temp antistaling process for raw wolfberry fruit juice according to claim 1, the condition that it is characterized in that above-mentioned high temperature sterilization are temperature 70-85 ℃, time 20-40 minute.

6. ordinary-temp antistaling process for raw wolfberry fruit juice according to claim 1, it is characterized in that above-mentioned aseptic hot canning be behind high temperature sterilization, take advantage of heat with aseptic complex pocket carry out canned, the material of aseptic complex pocket is the PP/PET-A1/PE composite.