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 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.

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 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.

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 HUBUNGAN ANTARA KANDUNGAN PATI RESISTEN DAN KUALITAS TANAK BERAS SIGER (TIWUL MODIFIKASI)

2018 ◽  
Vol 18 (1) ◽  
pp. 7
Author(s):  
Beni Hidayat ◽  
M. Muslihudin ◽  
Syamsul Akmal
Keyword(s):  
Resistant Starch ◽  
Digestive Enzymes ◽  
Room Temperature ◽  
Cooking Quality ◽  
Starch Content ◽  
Quality Characteristics ◽  
Eating Quality ◽  
Cycling Treatment ◽  
The Relationship

Resistant starch is a starch fraction that can not be hydrolyzed by digestive enzymes in the small intestine and classified as a prebiotic compound. Increasing the content of resistant starch to a certain amount in Siger Rice (modified tiwul) will decrease the cooking quality. The objective of this research was to study the relationship between resistant starch content and cooking quality of Siger Rice (eating quality, texture, and taste). The increase of resistant starch content in siger rice was done by the application of autoclaving-cooling cycling treatment, through steam stages, cooling to room temperature, followed by cooling at 4°C for 0 hours/control, 12 hours, 24 hours, 36 hours and 48 hours. The results showed that the increase of resistant starch content ≤ 10% (9.85%) will improve the quality characteristics of Siger Rice for all organoleptic scores, i.e., eating quality (7,15 to 8,2), texture (7.05 to 8.35), and flavor (6.95 to 8.15); on the contrary, the increase of resistant starch content more than 10% (14.25%) will decrease the cooking quality characteristics of Siger Rice for all organoleptic scores, i.e., eating quality (7.15 to 6.8), texture (7.05 to 6.6), and taste (6.95 to 6.4).

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.

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