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Castanea henryi starch-fatty acid compounding method for improving content of slowly digestible starch

A technology for digesting starch and fatty acids, applied in the functions of food ingredients, food science, applications, etc., can solve problems such as certain toxic organic compounds, and achieve the effect of increasing SDS content, increasing compound index, and improving compound index

Active Publication Date: 2019-11-15
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, fatty acids, high amylose starch and DMSO are directly miscible and compounded, and the formed compound is stable and has a high SDS content. However, DMSO is a kind of organic compound with certain toxicity, and it is not completely removed during the preparation process, so this method is not suitable. suitable for food processing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment includes the following steps:

[0035] (1) Preparation of Castanea henryi starch: select fresh and mature Castanea henryi, remove the shell and coat to obtain the chestnut kernel, mix the chestnut kernel and purified water in a mass ratio of 1:2, then use a beater to make a slurry, and filter with 100 mesh Filter with a net to obtain the filtrate, let it stand for 3 hours to remove the supernatant, then add pure water of the same quality as the precipitate, mix well, let stand for 2 hours, remove the supernatant, repeat this 4 times, and place the obtained precipitate at 45°C Air-dried for 36 hours, crushed, and sieved with 120 mesh to obtain Castanea henryi starch;

[0036] (2) Irradiation: Put the Castanea henryi starch obtained in step (1) under a gamma irradiation device for irradiation treatment, the irradiation dose is 8kGy, and the radiation source is cobalt-60;

[0037] (3) Gelatinization: Add the castanea henryi starch obtained in step (2) into purifi...

Embodiment 2

[0045] This embodiment includes the following steps:

[0046] (1) Preparation of Castanea henryi starch: select fresh and mature Castanea henryi, remove the shell and coat to obtain the chestnut kernel, mix the chestnut kernel and purified water in a mass ratio of 1:2, then use a beater to make a slurry, and filter with 100 mesh Filter with a net to obtain the filtrate, let it stand for 3 hours to remove the supernatant, then add pure water of the same quality as the sediment, mix well, let stand for 2 hours, remove the supernatant, and circulate 4 times, and place the resulting sediment at 45°C Air-dried for 36 hours, crushed, and sieved with 120 mesh to obtain Castanea henryi starch;

[0047] (2) Irradiation: Put the castanea starch obtained in step (1) under a gamma irradiation device for irradiation treatment, the irradiation dose is 10kGy, and the radiation source is cobalt-60;

[0048] (3) Gelatinization: Add the castanea henryi starch obtained in step (2) to purified water to...

Embodiment 3

[0070] The difference between this embodiment and embodiment 1 is that the monoglyceride added in step (4) is 0.15% of the starch dry basis mass, and the rest of the processing methods are the same. The composite index and SDS of the composite obtained in this embodiment are Content, the results are shown in Table 2.

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PUM

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Abstract

The invention discloses a castanea henryi starch-fatty acid compounding method capable of increasing the content of slowly digestible starch. The castanea henryi starch-fatty acid compounding method comprises the following steps: (1) preparing castanea henryi starch; (2) performing irradiation; (3) performing gelatinization; (4) performing emulsifying; (5) performing high-pressure homogenizing andcompounding; (6) performing spraying by using ultralow-temperature liquid nitrogen; (7) performing centrifugal dehydration; (8) performing freeze drying; and (9) performing crushing and performing sieving. The content of amylose in the castanea henryi starch is improved through an irradiation method, fatty acid is emulsified by an emulsifier, the emulsified product is compounded with starch to form more hydrogen bonds, so that the structure is stable, the compounding index of the emulsified product and the starch is improved, and the content of slowly digestible starch is increased; and the method provided by the invention does not use toxic or harmful chemical reagent, and is friendly to the environment, and the prepared starch-fatty acid compound has the characteristics of a high content of the slowly digestible starch, strong ageing resistance and the like and is a novel health-care food raw material.

Description

Technical field [0001] The invention relates to a food processing method of Castanea henryi, in particular to a method for increasing the content of slowly digested starch in the Castanea henryi. Background technique [0002] Starch is the nutrient component of food and the main source of energy for the human body. According to the digestion speed of starch in the human body, it can be divided into fast digestion starch (RDS), slow digestion starch (SDS) and resistant starch (RS). SDS has the characteristics of not causing rapid increase in blood sugar after human consumption, so it has become a hot research topic today. [0003] Castanea henryi is sweet and delicious, rich in nutrition, but the content of RDS is relatively high. How to increase the SDS content of Castanea henryi starch through physical modification methods has become an urgent problem to be solved. [0004] Although the physical modification method is safer for food, there is a general problem that the modificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/12C08K5/09C08K5/103A23L29/30A23L29/10A23L33/125A23L33/12
CPCA23V2002/00A23L29/10A23L29/30A23L33/12A23L33/125C08K5/09C08K5/103C08L3/12A23V2200/30
Inventor 李安平解明昱陈卫星王乐唐玉妹
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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