Structure and Physicochemical Properties of Resistant Starch Prepared by Autoclaving‐Microwave

2018 ◽  
Vol 70 (9-10) ◽  
pp. 1800060 ◽  
Author(s):  
Jiangtao Li ◽  
Wenfang Han ◽  
Binjia Zhang ◽  
Siming Zhao ◽  
Hongying Du
Keyword(s):  
Physicochemical Properties ◽  
Resistant Starch

PREPARATION AND CHARACTERISATION OF ACETYLATED WHEAT STARCH SUPPORTING FOR DIABETES TREATMENT

2018 ◽  
Vol 8 (5) ◽  
pp. 78-84
Author(s):  
Uyen Tran Thi Ngoc ◽  
Nam Nguyen Khac ◽  
Dung Tran Huu
Keyword(s):  
Physicochemical Properties ◽  
Resistant Starch ◽  
Starch Content ◽  
Degree Of Substitution ◽  
Wheat Starch ◽  
Diabetes Treatment ◽  
Glucose Response ◽  
Swelling Capacity ◽  
Wheat Starches

Background: The purpose of the study was to prepare acetylated wheat starches which have amylase hydrolysis resistant capacity to use as functional food supporting for diabetes treatment. Method: Acetate wheat starches were prepared by acetylation reaction of native wheat starch with different mole ratios of acetic anhydride. These starches were determined for the physicochemical properties by 1H-NMR, SEM, X-ray, DSC, solubility and swelling capacity, the resistant capacity by amylase hydrolysis in-vitro. Results: Acetate wheat starches were prepared successfully with the increase in acetyl content and degree of substitution corresponding with the increase of anhydride acetic, which resulted in the change of physicochemical properties of the wheat starches, including constitution, solubility, swelling capacity and contributed to the increase in resistant starch content in the acetate wheat starches. The AC150-9 containing 2.42% acetyl with degree of substitution 0,094 and resistant starch 32,11% is acceptable by FDA guideline about food safety. Conclusion: Acetate wheat starches contain low rate of digestive starch, while containing a higher proportion of resistant starch than natural wheat starch, possessing a high resistance to amylase activities. Thus, it is hope that this kind of starch to control the rapid increase of postprandual blood glucose response for diabetes treatments effectively. Key words: Acetate wheat starch, substitution, DS, RS, amylase

Physicochemical properties and sensory attributes of resistant starch-supplemented granola bars and cereals

LWT ◽  
2011 ◽  
Vol 44 (10) ◽  
pp. 2159-2165 ◽  
Author(s):  
Annelisse Aigster ◽  
Susan E. Duncan ◽  
Frank D. Conforti ◽  
William E. Barbeau
Keyword(s):  
Physicochemical Properties ◽  
Resistant Starch ◽  
Sensory Attributes

scholarly journals Waxy and Soluble Starch SynthaseII-3 Alleles Regulating Rice Resistant Starch Contents from Different Processing Status

2020 ◽  
Author(s):  
hui you ◽  
Liang Xu ◽  
Ouling Zhang ◽  
Xunchao Xiang
Keyword(s):  
Correlation Analysis ◽  
Physicochemical Properties ◽  
Dietary Fiber ◽  
Inbred Line ◽  
Recombinant Inbred ◽  
Resistant Starch ◽  
Molecular Breeding ◽  
Starch Synthesis ◽  
Soluble Starch ◽  
Cooked Rice

Abstract BackgroundResistant Starch (RS) is a healthy dietary fiber that has functions of regulating diabetes, hypertension and obesity. Previous studies mainly focused on investigating RS in raw rice or cooked rice separately, which may receive different results. ResultsIn this study, ninety-nine lines from a recombinant inbred line (RIL) were selected to investigate the effects of starch synthesis-related genes on the RS content in different process status. RS content in rice will change by different processing ways. Waxy (Wx) played an important role in controlling RS content and Wxa could elevate RS content, and soluble starch synthaseII-3 (SSII-3) had an impact on RS2. Additionally, interaction of Wx and SSII-3 was responsible for variations of RS content in three sample types and RS2. Wx could affect RS in cooked rice and retrograded rice under the same SSII-3 allele. Moreover, the correlation analysis results indicated that RS was closely relative with many indexes of physicochemical properties. ConclusionsWx and SSII-3 could regulate RS content of rice, but SSII-3 especially affected RS2. The findings herein should provide useful information for molecular breeding of rice RS.

scholarly journals Physicochemical Properties of Rice Flour Suspension Treated by Ultrahigh Hydrostatic Pressure

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Ji Won Park ◽  
Jeong Hyun Seo ◽  
Chae Young Hong ◽  
Min Young Kim ◽  
Yoon Jeong Lee ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Hydrostatic Pressure ◽  
Physicochemical Properties ◽  
Resistant Starch ◽  
Starch Content ◽  
Applied Pressure ◽  
Rice Flour ◽  
Rice Cultivar ◽  
Hydrolysis Rate ◽  
Iodine Reaction

This study investigated the physicochemical properties of rice flour suspensions under ultrahigh hydrostatic pressure (UHP) treatment. Rice flour suspensions were subjected to 200, 400, and 600 MPa of pressure for 10 min, and heat treatment was used as a control. Proximate characteristics of different rice cultivar were analyzed to amylose, damage starch content, and particle size. Changes in physicochemical properties of rice flour suspensions according to UHP treatment were analyzed to microscopic structure, iodine reaction, α-amylase hydrolysis rate, and resistant starch content. Microscopic structural analyses showed that the structures of the rice flours were altered under both heat and 600 MPa treatment conditions. Water absorption rates were highest under heat treatment (467.53–554.85%), followed by 600 MPa treatment (269.55–334.57%). Iodine reaction values increased with increasing applied pressure. α-Amylase hydrolysis rates and resistant starch contents were highest under heat treatment and increased with increasing applied pressure. Based on these results, 600 MPa treatment of rice flour suspensions was shown to be comparable to heat treatment; as a result, the development of the new rice processing method with different physicochemical properties is expected from rice cultivars treated under UHP processing methods.

Sign in / Sign up

Export Citation Format

Share Document