scholarly journals Cellulolytic and xylanolytic enzyme combinations in the hydrolysis of red rice bran: A disparity in the release of nutraceuticals and its correlation with bioactivities

LWT ◽  
2021 ◽  
pp. 112856
Author(s):  
I. Sapna ◽  
A. Jayadeep
Keyword(s):  
Rice Bran ◽  
Red Rice ◽  
Xylanolytic Enzyme ◽  
Hydrolysis Of

scholarly journals ANTIOXIDANT EVALUATION AND PHYTOCHEMICAL CONTENT OF VARIOUS RICE BRAN EXTRACTS OF THREE VARIETIES RICE FROM SEMARANG-CENTRAL JAVA, INDONESIA

2017 ◽  
Vol 10 (6) ◽  
pp. 377 ◽  
Author(s):  
Sukrasno Sukrasno ◽  
Slamet Tuty ◽  
Irda Fidrianny
Keyword(s):  
Rice Bran ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Carotenoid Content ◽  
Total Phenolic ◽  
Red Rice ◽  
Black Rice ◽  
Dpph Assay ◽  
Rice Bran Extract ◽  
Dpph Scavenging

Objectives: The objectives of this research were to evaluate antioxidant activity from different polarities rice bran extract of three varieties of rice using two methods of antioxidant testing which were FRAP (Ferric Reducing Antioxidant Power) and DPPH (2,2-diphenyl-1-picrylhydrazyl), and correlation of total phenolic, flavonoid and carotenoid content with their EC50 of FRAP and IC50 of DPPH antioxidant activities. Methods: Extraction was conducted by reflux using different polarity solvents. The extracts were evaporated using rotary evaporator. Determination of total phenolic, flavonoid and carotenoid content, antioxidant activities using FRAP and DPPH assays were performed by UV-visible spectrophotometry and its correlation with EC50 of FRAP capacities and IC50 of DPPH scavenging activities were analyzed by Pearson’s method. Results: Ethanolic rice bran extract of black rice showed the lowest EC50 of FRAP capacity 64.35 µg/ml and IC50 of DPPH scavenging activity 23.92 µg/ml. The highest phenolic content, flavonoid content and carotenoid content were also given by ethanolic rice bran extract of black rice. There were significantly negative correlation between total phenolic content and carotenoid content in rice bran extract of red rice and black rice with their IC50 of DPPH. Conclusions: All of rice bran extracts (except n-hexane rice bran extract of black rice and ethanolic rice bran extract of white rice) were very strong antioxidant, by DPPH assay. Phenolic and carotenoid compounds in rice bran extracts of red rice and black rice were the major contributor in antioxidant activity by DPPH assay. Rice bran extracts of black rice had linear results by FRAP and DPPH assays. 

scholarly journals PENGARUH PERBANDINGAN TERIGU DAN BEKATUL BERAS MERAH TERHADAP KARAKTERISTIK MIE KERING

2018 ◽  
Vol 7 (4) ◽  
pp. 156
Author(s):  
Ni Komang Sri Budihartini ◽  
I Dewa Gede Mayun Permana ◽  
Putu Timur Ina
Keyword(s):  
Water Absorption ◽  
Wheat Flour ◽  
Rice Bran ◽  
Fiber Content ◽  
Red Rice ◽  
Overall Acceptability ◽  
Crude Fiber Content ◽  
Randomized Design ◽  
Red Color ◽  
Range Test

The purpose of study were to find the optimum ratio of wheat flour with red rice bran to produce the best characteristics of dry noodle. The Completely Randomized Design was used in the research with treatment that is the ratio of flour with red rice bran which consist of 6 levels: 100%:0%; 95%:5%; 90%:10%; 85%:15%; 80%:20%; 75%:25%. The treatment was repeated 3 times to obtain 18 units of experiment. The data obtained were analyzed by variance and if the treatment had an effect on the observed variable then continued with Duncan Multiple Range Test (DMRT) test. The ratio of flour to red rice bran significantly influenced moisture, ash , fat, protein, carbohydrate, curde fiber content, inhibitor concentration (IC50), water absorption, color (scoring test), flavor (hedonic test), texture (hedonic test and scoring), taste (hedonic test) as well as overall acceptance (hedonic test) dry noodle.The ratio of wheat flour and red rice bran flour  (80%:20%) produces dry noodle with the best characteristics namely: 10.67% moisture content, ash content  2.91%, 1.09% fat content, 13.52% protein content, 71.80 % carbohydrate content, 4.15% crude fiber content, IC50 149.35 mg/ml, water absorption 223.23%, dark red color and rather liked color, rather liked flavor, elastic and rather liked texture, rather liked taste and rather liked overall acceptability.

Aroma Components of Acid-Hydrolyzed Vegetable Protein Made by Partial Hydrolysis of Rice Bran Protein

2007 ◽  
Vol 55 (8) ◽  
pp. 3044-3050 ◽  
Author(s):  
Arporn Jarunrattanasri ◽  
Chockchai Theerakulkait ◽  
Keith R. Cadwallader
Keyword(s):  
Rice Bran ◽  
Vegetable Protein ◽  
Partial Hydrolysis ◽  
Rice Bran Protein ◽  
Aroma Components ◽  
Hydrolysis Of

Hydrolysis of rice bran oil using immobilized lipase in a stirred batch reactor

2002 ◽  
Vol 7 (6) ◽  
pp. 367-370 ◽  
Author(s):  
V. Ramachandra Murty ◽  
Jayadev Bhat ◽  
Pk. A. Muniswaran
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Batch Reactor ◽  
Immobilized Lipase ◽  
Hydrolysis Of

Application of aromatic red rice bran to rice wine brewing: Studies on red rice wine brewing (Part 2)

1991 ◽  
Vol 72 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Tatsuro Ueki ◽  
Yuji Teramoto ◽  
Riichiro Ohba ◽  
Seinosuke Ueda ◽  
Kiyoshi Yoshizawa
Keyword(s):  
Rice Bran ◽  
Rice Wine ◽  
Red Rice

scholarly journals Oral Administration of Red Rice (Oryza nivara) Bran Extract Reduced Weight, Visceral Fat And Liver Steatosis Amount in Obesity Male Wistar Rats (Rattus norvegicus)

2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Dianika Putri Puspitasari ◽  
Alex Pangkahila ◽  
Ni Nyoman Ayu Dewi
Keyword(s):  
Body Weight ◽  
Treatment Group ◽  
Oral Administration ◽  
Rice Bran ◽  
Visceral Fat ◽  
Wistar Rats ◽  
Liver Steatosis ◽  
Control Group ◽  
Red Rice ◽  
Oryza Nivara

Background: Nonalcoholic fatty liver disease (NAFLD) is associated with obesity. Red rice (Oryza nivara) bran is known to contain polyphenol and antioxidants that might be potential in reducing body weight and visceral fat in obese mice and preventing liver steatosis. This study was aimed to prove the effect of oral administration of red rice bran (Oryza nivara) extract on body weight, visceral fat, and liver steatosis amount in obese male Wistar rats.            Method: In this research, the subjects were 36 male obese (Lee index > 0.3) white rats (Rattus norvegicus) Wistar strain, 4-5 months old, divided into two groups. The control group received a placebo and the treatment group received 460mg/200gram red rice bran extract for 5-weeks. Bodyweight, visceral fat, and the amount of liver steatosis were observed. Differences between groups in each variable were analyzed. Results: The weight of the control group and the treatment group was 321.17 ± 19.04 grams and 305.72 ± 12.89 grams (p < 0.05). The visceral fat weight was 3.15 ± 0.34 grams in the control group and 2.99 ± 0.34 grams (p > 0.05) in the treatment group. Liver steatosis amount was 41 ± 18 cells per visual field in the control group, and 21 ± 12 (p < 0.05) in the treatment group. Conclusion: Oral administration of red rice bran extract can reduce body weight and liver steatosis amount in obese Wistar rats. The extract of red rice bran did not have a significant effect in reducing visceral fat.

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