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Anti-low temperature saccharification storage method of potato with gradient hypoxia synergistic gasification fumigation

A technology of potato and low temperature resistance, which is applied in food ingredients containing gas, fruit/vegetables preserved by freezing/refrigeration, food processing, etc. It can solve the problems of unstable properties, difficult screening, high investment, etc., and achieve the goal of reducing reducing sugar Effects of generation, reduction of tuber greening, improvement of efficacy and safety

Active Publication Date: 2022-06-07
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, modern genetic improvement measures have problems such as difficult screening, high investment, and unstable traits.

Method used

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  • Anti-low temperature saccharification storage method of potato with gradient hypoxia synergistic gasification fumigation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Experimental treatment

[0034] ①Calling period: The harvested potatoes (the variety is Atlantic) are subjected to callus treatment under the conditions of temperature of 12-20°C, relative humidity of 95%-98%, callus time of 14 days, and callus period of 0.5%. 2 The concentration is kept between 10% and 21% to ensure the healing effect.

[0035] ② Dormant period: the potato tubers after the above callus treatment are treated with O2 with a concentration of 4% to 10%. 2 , the rest are N 2 The first hypoxic conditioning treatment was carried out in a balanced manner, during which it was treated with ethanol fumigation (a measure of anhydrous ethanol was evenly dropped on the unfolded 6-layer gauze for rapid sealing treatment), and the treatment concentration was 400-600 μL / L; Pre-storage at 8°C and relative humidity of 90%-95% for 7-10 days, and then store at temperature of 3-8°C and relative humidity of 85%-90% for 2-4 months until the end of the dormant period;

...

Embodiment 2

[0043] (1) Experimental treatment

[0044] ①Calling period: The harvested potatoes (species: Atlantic Ocean) are subjected to callus treatment under the conditions of temperature 12~20℃, relative humidity 95%~98%, O 2 Concentration of 10% to 21%, the callus time is 14 days.

[0045] ② Dormant period: with N 2 balance, set O separately 2 The concentration is 5% (a low O 2 treatment group) and 21% (air control group), low O 2 The treatment group was treated with 400-600 μL / L ethanol fumigation at the same time (quantitative anhydrous ethanol was evenly dropped on the unfolded 6-layer gauze and quickly sealed). Then, pre-storage for 7-10 days at a temperature of 6-8°C and a relative humidity of 90%-95%, and then store it for 2 months at a temperature of 3-8°C and a relative humidity of 85%-90%.

[0046] ③ Germination period: with N 2 balance, set O separately 2 The concentration is 2.5% (secondary low O 2 treatment group) and 21% (air control group), low O 2 The treatmen...

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Abstract

The invention discloses a potato gradient low-oxygen cooperative gasification fumigation anti-low temperature saccharification storage method, the steps are as follows: (1) callus period: freshly harvested potatoes are first subjected to callus treatment; (2) dormant period: the first Sub-hypoxic adjustment treatment, during which it is coordinated with ethanol fumigation treatment; pre-storage for 7-10 days, and then stored for 2-4 months until the end of the dormant period; (3) Germination period: after the end of the dormant period, carry out the second hypoxic adjustment treatment During the period, the R-carvone fumigation treatment was adopted in cooperation; after that, it was stored at a temperature of 3-8°C and a relative humidity of 85%-90% until the end. The present invention takes three special physiological stages of potato callus, dormancy and germination as time nodes, adopts different concentrations of low-oxygen adjustment treatment in cooperation with different auxiliaries for fumigation, abandons the drawbacks of traditional one-time centralized treatment after harvesting, and processes the whole process Both are in the form of gas diffusion to enhance effectiveness and safety.

Description

technical field [0001] The invention belongs to the technical field of food, in particular to a potato gradient low-oxygen synergistic gasification fumigation anti-low temperature saccharification storage method. Background technique [0002] my country is the world's largest potato production and consumption country, with a total output of 90.26 million tons in 2018, accounting for 1 / 4 of the world's total (Chen Mengshan et al., 2020). In order to prolong the processing period and avoid the tubers losing water and shrinking, germination weight loss and disease rot, potatoes are usually stored below 10 ℃. However, low temperature solves the above problems and induces massive accumulation of reducing sugars (glucose and fructose) in tuber cells, that is, the phenomenon of "low temperature saccharification" (Burton, 1969). During high-temperature frying of potatoes, the reducing sugars in tubers undergo Maillard reaction with free amino acids, resulting in darkened color and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/144A23B7/148A23B7/04
CPCA23B7/144A23B7/148A23B7/04A23V2002/00A23V2250/082A23V2250/126A23V2250/124A23V2250/10Y02P60/85
Inventor 潘艳芳田甲春张洁王丽花
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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