scholarly journals Effect of Sand-Frying-Triggered Puffing on the Multi-Scale Structure and Physicochemical Properties of Cassava Starch in Dry Gel

Biomolecules ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1872
Author(s):  
Yonglin He ◽  
Fayin Ye ◽  
Sheng Li ◽  
Damao Wang ◽  
Jia Chen ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Water Solubility ◽  
Cassava Starch ◽  
Scale Structure ◽  
Two Phase ◽  
Multi Scale ◽  
Starch Gel ◽  
Underlying Mechanisms ◽  
Gel Network

This study revealed the underlying mechanisms involved in the puffing process of dried cassava starch gel by exploring the development of the puffed structure of gel upon sand-frying, chiefly focused on the changes in the multi-scale structure and the physicochemical properties of starch. The results suggested that the sand-frying-induced puffing proceeded very fast, completed in about twenty seconds, which could be described as a two-phase pattern including the warming up (0~6 s) and puffing (7~18 s) stages. In the first stage, no significant changes occurred to the structure or appearance of the starch gel. In the second stage, the cells in the gel network structure were expanded until burst, which brought about a decrease in moisture content, bulk density, and hardness, as well as the increase in porosity and crispness when the surface temperature of gel reached glass transition temperature of 125.28 °C. Upon sand-frying puffing, the crystalline melting and molecular degradation of starch happened simultaneously, of which the latter mainly occurred in the first stage. Along with the increase of puffing time, the thermal stability, peak viscosity, and final viscosity of starch gradually decreased, while the water solubility index increased. Knowing the underlying mechanisms of this process might help manufacturers produce a better quality of starch-based puffed products.

Understanding the multi-scale structure, physicochemical properties and in vitro digestibility of citrate naked barley starch induced by non-thermal plasma

2021 ◽  
Author(s):  
Huishan Shen ◽  
Xiangzhen Ge ◽  
Bo Zhang ◽  
Chunyan Su ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Thermal Plasma ◽  
Scale Structure ◽  
In Vitro Digestibility ◽  
Multi Scale ◽  
Naked Barley ◽  
Starch Modification ◽  
Plasma Pretreatment ◽  
Non Thermal Plasma

Non-thermal plasma is an emerging and effective starch modification technology. In this paper, plasma pretreatment was used to modify the citrate naked barley starch for enhancing the accessibility of citric...

scholarly journals Effect of pH on Physicochemical Properties of Cassava Starch Modification Using Ozone

2018 ◽  
Vol 156 ◽  
pp. 01027 ◽  
Author(s):  
Isti Pudjihastuti ◽  
Noer Handayani ◽  
Siswo Sumardiono
Keyword(s):  
Physicochemical Properties ◽  
Water Solubility ◽  
Amylose Content ◽  
Reaction Times ◽  
Cassava Starch ◽  
Carboxyl Content ◽  
Effect Of Ph ◽  
Swelling Power ◽  
Starch Modification ◽  
High Amylose

Nowadays, starch modification is carried out in order to change the native properties into the better ones, such as high stability, brightness, and better texture. The objectives of this study are to investigate the effect of pH on carboxyl content, swelling power, and water solubility of starch. This research was divided into two main stages, i.e. starch modification by ozone oxidation and analysis. The physicochemical properties of modified cassava starch were investigated under various reaction pH of 7-10 and the reaction time between 0-240 minutes. Reaction condition at pH 10 provided the higher value of carboxyl content and water solubility, but the lower of swelling power. This increase in solubility indicates that the modified oxidation starch readily dissolves in water, due to its small size granules and high amylose content. The significant changes of both parameters were achieved in the first 120 minutes of ozone reaction times. The graphic pattern of water solubility was in contrast with swelling power.

scholarly journals Modification of multi-scale structure, physicochemical properties, and digestibility of rice starch via microwave and cold plasma treatments

LWT ◽  
2022 ◽  
Vol 153 ◽  
pp. 112483
Author(s):  
Xiangxiang Sun ◽  
Ahmed S.M. Saleh ◽  
Zhuangzhuang Sun ◽  
Xiangzhen Ge ◽  
Huishan Shen ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Cold Plasma ◽  
Scale Structure ◽  
Rice Starch ◽  
Multi Scale ◽  
Plasma Treatments

scholarly journals Changes in physical properties of extruded sour cassava starch and quinoa flour blend snacks

2012 ◽  
Vol 32 (4) ◽  
pp. 826-834 ◽  
Author(s):  
Lívia Giolo Taverna ◽  
Magali Leonel ◽  
Martha Maria Mischan
Keyword(s):  
Physical Properties ◽  
Water Solubility ◽  
Extrusion Process ◽  
Cassava Starch ◽  
Raw Material ◽  
Pronounced Increase ◽  
Single Screw Extruder ◽  
Good Potential ◽  
Quinoa Flour

Given the broad acceptance of sour cassava starch biscuits in Brazil and the nutritional quality of quinoa flour, this study aimed to evaluate the effect of extrusion temperature, screw speed, moisture, and amount of quinoa flour on the physical properties of puffed snacks. Extrusion process was carried out using a single-screw extruder in a factorial central composite design with four factors. Effects of moisture and amount of quinoa flour on the expansion index and specific volume of snacks were observed. There was a pronounced increase in water solubility index of blends with the extrusion process with significant effects of all process parameters on the WSI. Higher water absorption index (WAI) was observed under high temperature, low moisture, and lower quinoa flour amount. Temperature and amount of quinoa flour influenced the color of the snacks. A positive quadratic effect of quinoa flour on hardness of products was observed. Blends of sour cassava starch and quinoa flour have good potential for use as raw material in production of extruded snacks with good physical properties.

Modulation of the digestibility and multi-scale structure of cassava starch by controlling the cassava growth period

2018 ◽  
Vol 120 ◽  
pp. 346-353 ◽  
Author(s):  
Kun Liu ◽  
Yanyan Zu ◽  
Chengdeng Chi ◽  
Bi Gu ◽  
Ling Chen ◽  
...  
Keyword(s):  
Growth Period ◽  
Cassava Starch ◽  
Scale Structure ◽  
Multi Scale
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