Enhancement of resistant starch content in modified rice flour using extrusion technology

2021 ◽  
Author(s):  
Beenish Gulzar ◽  
Syed Zameer Hussain ◽  
Bazila Naseer ◽  
Haroon Rashid Naik
Keyword(s):  
Resistant Starch ◽  
Starch Content ◽  
Rice Flour ◽  
Extrusion Technology

scholarly journals The effect of extrusion cooking on resistant starch formation in rice flour snack enriched with chicory root

2021 ◽  
Vol 25 (2) ◽  
pp. 47-51
Author(s):  
Branislava Đermanović ◽  
Jovana Kojić ◽  
Jelena Krulj ◽  
Jelena Perović ◽  
Lidija Peić-Tukuljac ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Starch Content ◽  
Rice Flour ◽  
Extrusion Process ◽  
Negative Influence ◽  
Extrusion Cooking ◽  
Screw Speed ◽  
Chicory Root ◽  
Feed Moisture ◽  
Extruded Products

The aim of this study was to evaluate the influence of extrusion process variables on the resistant starch content (RS) in a sample of rice snacks with added chicory root (addition: from 20-40%). The effect of different levels of feed moisture (16.3 to 22.5%) and screw speed (500 to 900) rpm, as well as chicory root addition, during extrusion cooking on the resistant starch content of extruded products, was investigated. Results of our experiments have demonstrated a decrease in the resistant starch content after extrusion, which is also observed in some other studies. The resistant starch content was in a range of 0.1302 g/100g to 0.5302 g/100g. According to Yoon's model, the screw speed had the greatest negative influence, while the increased feed moisture had a positive effect on resistant starch content, as well as the share of chicory addition.

scholarly journals Heat-Moisture Treatment Further Reduces In Vitro Digestibility and Enhances Resistant Starch Content of a High-Resistant Starch and Low-Glutelin Rice

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2562
Author(s):  
Zhiyuan Li ◽  
Dongshu Guo ◽  
Xiao Li ◽  
Zhaocheng Tang ◽  
Xitie Ling ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Kidney Diseases ◽  
Starch Content ◽  
Rice Flour ◽  
Targeted Mutagenesis ◽  
In Vitro Digestibility ◽  
Food Ingredient ◽  
Heat Moisture Treatment ◽  
Moisture Treatment

A novel rice germplasm sbeIIb/Lgc1 producing grains rich in resistant starch (RS) but low in glutelin has been developed through CRISPR/Cas9-mediated targeted mutagenesis for its potential benefits to patients with diabetes and kidney diseases. In this study, a hydrothermal approach known as heat-moisture treatment (HMT) was identified as a simple and effective method in reinforcing the nutritional benefits of sbeIIb/Lgc1 rice. As a result of HMT treatment at 120 °C for 2 h, significant reductions in in vitro digestibility and enhancements in RS content were observed in sbeIIb/Lgc1 rice flour when the rice flour mass fraction was 80% and 90%. The low-glutelin feature of sbeIIb/Lgc1 rice was not compromised by HMT. The potential impacts of HMT on a range of physicochemical properties of sbeIIb/Lgc1 rice flour have also been analyzed. HMT resulted in a darker color of rice flour, alteration in the semi-crystalline structure, an increase in gelatinization temperatures, and reductions in the pasting viscosities as the moisture content increased. This study provides vital data for the food industry to facilitate the application of this dual-functional rice flour as a health food ingredient.

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.

scholarly journals Improvement of resistant starch content and baking quality of cross-linked soft rice flour

2020 ◽  
Vol 29 (12) ◽  
pp. 1695-1703
Author(s):  
Chae Eun Lee ◽  
Junhee No ◽  
Kyongae Lee ◽  
Malshick Shin
Keyword(s):  
Resistant Starch ◽  
Starch Content ◽  
Rice Flour ◽  
Baking Quality

scholarly journals Assessing the Performance of Different Grains in Gluten-Free Bread Applications

2020 ◽  
Vol 10 (24) ◽  
pp. 8772
Author(s):  
Iuliana Banu ◽  
Iuliana Aprodu
Keyword(s):  
Antioxidant Activity ◽  
Ferulic Acid ◽  
Resistant Starch ◽  
Starch Content ◽  
Rice Flour ◽  
Total Phenolic ◽  
Total Phenol Content ◽  
Gluten Free ◽  
Total Dietary Fiber ◽  
Quinoa Flour

A comparative analysis of quinoa, sorghum, millet and rice flours and breads in terms of proximate composition, resistant starch, antioxidant activity and total phenolic content was realized in this study. Quinoa whole flour had the highest content of proteins, fat, ash and total dietary fiber, followed by millet and sorghum flours. Quinoa and rice breads had higher specific volume (192.22 and 181.04 cm3/100 g, respectively) and lower crumb firmness (10.81 and 13.74 N, respectively) compared to sorghum and millet breads. The highest total phenol content was obtained in the case of bread prepared with quinoa flour (398.42 mg ferulic acid equiv/100 g d.w.), while the lowest content was obtained for the rice flour bread (70.34 mg ferulic acid equiv/100 g d.w). The antioxidant activity of gluten-free breads decreased in the following order: sorghum > quinoa > millet > rice. Quinoa bread had the highest resistant starch content of 3.28% d.w., while the rice bread had the highest digestible starch content of 81.48% d.w. The slowly digestible starch varied from 15.5% d.w. for quinoa bread, to 6.51% d.w. for millet bread. These results revealed the huge potential of quinoa, sorghum and millet to be used for developing functional gluten-free bread.

scholarly journals Innovative Milling Processes to Improve the Technological and Nutritional Quality of Parboiled Brown Rice Pasta from Contrasting Amylose Content Cultivars

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1316
Author(s):  
Federica Taddei ◽  
Elena Galassi ◽  
Francesca Nocente ◽  
Laura Gazza
Keyword(s):  
Resistant Starch ◽  
Amylose Content ◽  
Starch Content ◽  
Fine Fraction ◽  
Brown Rice ◽  
Rice Flour ◽  
Free Products ◽  
Technological Processes ◽  
High Amylose

The demand for gluten-free products, including pasta, is increasing and rice pasta accounts for the largest share of this market. Usually, the production of rice pasta requires additives or specific technological processes able to improve its texture, cooking quality, and sensory properties. In this work, two rice cultivars, with different amylose content, were subjected to parboiling, micronization, and flour air fractionation to obtain brown rice pasta, without any supplement but rice itself. In particular, two types of pasta (spaghetti shape) were produced, one from 100% micronized wholemeal, and the other from refined rice flour replaced with 15% of the air-fractionated fine fraction. Regardless of the cultivar, pasta from wholemeal micronized flour showed higher protein and fiber content than refined flour enriched with fine fraction, whereas no differences were revealed in resistant starch and antioxidant capacity. Pasta from the high amylose content genotype showed the highest resistant starch content and the lowest predicted glycemic index along with sensorial characteristics as good as durum semolina pasta in fine fraction enriched pasta. Besides the technological processes, pasta quality was affected the most by the genotype, since pasta obtained from high amylose cv Gladio resulted in the best in terms of technological and sensory quality.

Exploring high amylose rice in combination with carboxymethyl cellulose for preparation of low glycemic index gluten-free shelf-stable cookies

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Bazila Naseer ◽  
Haroon Rashid Naik ◽  
Syed Zameer Hussain ◽  
Tashooq Bhat ◽  
Abdul Rouf
Keyword(s):  
Celiac Disease ◽  
Glycemic Index ◽  
Resistant Starch ◽  
Starch Content ◽  
Rice Flour ◽  
Gluten Free ◽  
Ambient Conditions ◽  
Content Type ◽  
High Amylose ◽  
Shelf Stable

PurposeLow glycemic index gluten-free cookies from high amylose rice flour were prepared by modifying baking conditions and ingredient composition.Design/methodology/approachBaking temperature, baking time, and concentration of carboxymethyl cellulose (CMC) were varied between 170 and 190° C, 12–25 min, and 0.2–1%, respectively, using central composite rotatable design. The developed cookies were packed in metalized polyester pouches and stored under ambient conditions for a period of 90 days.FindingsWidth and bulk density of cookies increased significantly (p < 0.05) with an increase in baking temperature, while thickness, baking loss and yield decreased with an increase in baking temperature. Puffiness increased predominantly with the increase in the concentration of CMC. Design expert predicted baking temperature of 185° C, baking time of 22 min, and 0.8% concentration of CMC as desirable conditions for the development of gluten-free cookies from rice flour. Cookies developed after following optimized conditions recorded dietary fiber of 4.66%, resistant starch (RS) content of 7.20% and predicted glycemic index (pGI) of 44.60. RS, pGI, moisture, water activity, free fatty acids and peroxide value increased significantly, whereas hardness and overall acceptability decreased during storage.RPractical implicationsGluten-free (GF) foods are in high demand globally due to the prevalence of celiac disease. Rice lacks gluten protein, and thus, can serve as a potential raw material for the development of GF cookies. In the present study, the ingredient modification and freezing interventions during baking were found to be crucial if the development of low GI gluten-free cookies having good RS content is targeted. Optimized GF cookies prepared via technological intervention and packed in metalized polyester were shelf stable for up to 3 months under ambient conditions. Furthermore, resistant starch content was enhanced while the predicted glycemic index was decreased during storage. Adoption of baking conditions and CMC level optimized in the present study can help to develop shelf-stable GF bakery products for people suffering from comorbidities like celiac disease and diabetes.Originality/valueResistant starch content was enhanced while predicted glycemic index was decreased during storage of gluten-free cookies prepared from high amylose rice flour. The developed cookies can be a complementary diet to people suffering from comorbidities like celiac disease and diabetes.

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

Effects of resistant starch content on mixture and cooking among different genotypes rice

2011 ◽  
Vol 36 (6) ◽  
pp. 605-608
Author(s):  
Shu-ming YANG ◽  
Tao YANG ◽  
Jin-jin WANG ◽  
Ya-wen ZENG ◽  
Juan DU ◽  
...  
Keyword(s):  
Resistant Starch ◽  
Starch Content

Drum drying of unpeeled green banana pulp (Musa cavendishii) for bake stable fruit filling production.

2019 ◽  
Vol 36 (1) ◽  
Author(s):  
Mário José Andrade MENDES ◽  
Dayane Rosalyn IZIDORO ◽  
Agnes De Paula SCHEER
Keyword(s):  
Chemical Composition ◽  
Central Composite Design ◽  
Resistant Starch ◽  
Starch Content ◽  
Pasting Properties ◽  
Absorption Capacity ◽  
Production Chain ◽  
Banana Flour ◽  
Green Banana ◽  
Central Composite

There is a growing interest in food matrixes for the use of flour from unpeeled green banana in order to reduce waste in the production chain. Considering this, the present paper aims to studying the application of unpeeled green banana flour in the cold process performed to obtain bake stable fruit filling. The unpeeled green banana pulp (Musa Cavendishii) was dried using a single rotating drum, thus obtaining the flour. The dried flour was then analyzed for its chemical composition, amylose and resistant starch content, water absorption capacity and pasting properties. The drying reduced the amount of resistant starch and produced pregelatinized starch. The obtained flour showed physical and nutritional characteristics which enabled the development of the filling formula by using a central composite design combining levels -1 and +1, two axial points (± α), two central points, and chemical composition, water activity, Brix, and texture as response variables. The amount defined by central-composite design of unpeeled green banana flour, modified starches and other ingredients resulted in an elastic, viscous, bake stable fruit filling.

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