scholarly journals Effect of germination on yield, physico-chemical properties, nutritional composition and GABA content in germinated brown rice

2021 ◽  
Vol 58 (4) ◽  
pp. 496-505
Author(s):  
Naseerunnisa Mohmmed ◽  
Aparna Kuna ◽  
Supta Sarkar ◽  
MM Azam ◽  
Lakshmi prasanna K ◽  
...  

Germinated brown rice (GBR) is an emerging health food that has received attention due to its nutritional composition, especially Gamma Amino Butyric Acid (GABA). The objective of this research was to germinate two brown rice varieties MTU 1010 and KNM 118 at various germination hours (0, 12, 24, 36, 48, 72 hours) to determine the best yield and correlate with the nutritional composition and GABA content. Brown rice soaked in water for 12 hours at 28 ± 2ºC followed by 24 to 36 hours germination was found to have optimum yield (85%) with good nutritional and GABA content. Protein, fat, crude fiber, carbohydrate content and energy content among all samples were highest at 24 hours and 36 hours of germination. Pearson correlation coefficient performed between yield, germination hours and nutritional parameters of both varieties, indicated a positive correlation between germination hours and GABA content in both varieties.

2010 ◽  
Vol 16 (2) ◽  
pp. 147-158 ◽  
Author(s):  
W. Watchararparpaiboon ◽  
N. Laohakunjit ◽  
O. Kerdchoechuen

Germinated brown rice (GBR) of two popular Thailand varieties, Khao Dawk Mali 105 (KDML 105) and Chainat 1, with improved nutritional composition, was obtained by optimizing water soaking conditions. Different water pH (3, 4, 6 and 8), temperatures (25 °C, 35 °C and 45 °C), and soaking times (12 and 24 h) were tested. Using the response surface methodology (RSM), the best condition for producing GBR of both varieties was soaking in water with pH 6 and temperature of 35 °C for 24 h. It caused a 4- to 5-fold increase in gamma-amino butyric acid (GABA) content which, together with protein and lipid contents, were highest among treatments. Intermediate levels of thiamine (vitamin B1) and phytic acid (IP6) were obtained. In GBR of KDML 105 variety, GABA, vitamin B1 and IP6 contents were 16.48, 0.526 and 501.06 mg/100 g, respectively, while protein and lipid contents were 10.50% and 4.00%, respectively. For Chainat 1 variety, GABA, vitamin B1 and IP6 contents were 14.50, 0.436 and 486.03 mg/100 g, respectively, while protein and lipid contents were 9.80% and 3.99%, respectively. Carbohydrate and amylose contents differed by only less than 1-2% among treatments. Supplemental aeration during water soaking decreased GABA, protein and lipid contents, but increased vitamin B1 and IP6 contents in both varieties. Furthermore, cooked GBR of both varieties had softer texture than cooked ordinary brown rice.


2020 ◽  
Author(s):  
Hadi Munarko ◽  
Azis Boing Sitanggang ◽  
Feri Kusnandar ◽  
Slamet Budijanto

Abstract BackgroundGermination can improve the palatability and alter physicochemical, nutritional, and nutraceutical value of brown rice. This study aimed to evaluate the antioxidant, bioactive compounds, fatty acids, and pasting profiles from six Indonesian brown rice varieties during germination. The germination was carried out through a complete soaking method for up to 120 h, and the samples were taken every 24 h germination. ResultsThe results showed that germination increased GABA content in brown rice. The highest level of GABA, up to 126.55 mg/100g, obtained in rice var. Inpari 43, after 120 h. Germination also affected the phenolic content, antioxidant capacity, and γ-oryzanol content, but no consistent trends were observed among the varieties. Fatty acid compositions of germinated brown rice showed no changes during germination. The pasting properties of samples changed significantly after germination, especially in peak viscosity, final viscosity, breakdown, and setback value. ConclusionIn conclusion, the changes in brown rice characteristics during germination, especially for increased GABA content and shifting of pasting properties, are valuable information for developing functional rice-based food products.


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 735-735
Author(s):  
Oyetunji Akinola

Abstract Objectives The main shelf-stable product of yam is the traditional yam flour (elubo), Yams (Dioscorea spp.) which are regarded as traditional foods are consumed in various ways but majorly consumed as yam flour in the south west region of Nigeria. This study investigated the physical, functional and sensory properties and anti-nutrients contents of peeled and unpeeled yam flour. Methods Yam bought in the popular market production procedures were followed, washing, peeling and slicing, parboiling, steeping. draining, drying, milling, and packaging for peeled yam and unpeeled yam peeling was not included in the process, the two samples were analyzed chemically according to the official methods of analysis described by the Association of Official Analytical Chemist as well as sensory evaluation. Results The results of the study confirmed the significant difference in the micro nutrients content of peeled and unpeeled yam flour in fats and water soluble vitamins respectively (K µg/100 g = 6.97,11.83, Fe(mg/kg) = 95.2, 126.9, minerals content Zn(mg/kg) 13.48, 22.92, Fe(mg/kg) 95.2126.9 and anti-nutrient properties of the ‘Amala’ made from the two products (peeled and unpeeled yam flour) the percentage of Tannin 0.0023, 0.0010 and Hydrocynaide (mg/kg) 0.92, 1.01.The proximate analysis of unpeeled yam four indicated a high value than that of peeled yam flour in protein (2.47, 2.28), fats (1.86, 0.54), ash (3.59, 2.32), and fibre (3.09, 1.31) of both samples respectively but the energy content derived from the ‘amala’ made from unpeeled yam flour is lesser to that of peeled yam flour. Significant exist between the two samples in sensory evaluation of taste, texture, color, mouldability, aroma and general acceptability. Conclusions The result shown that the consumption of unpeeled yam flour can be useful in treatment of nutrient deficiencies diseases. Funding Sources Self.


2011 ◽  
Vol 10 (6) ◽  
pp. 960-968 ◽  
Author(s):  
Qin-lu LIN ◽  
Hua-xi XIAO ◽  
Xiang-jin FU ◽  
Wei TIAN ◽  
Li-hui LI ◽  
...  

2014 ◽  
Vol 17 (7) ◽  
pp. 1449-1459 ◽  
Author(s):  
Maznah Ismail ◽  
Nordiana Abdul Hadi ◽  
Rafiuz-Zaman Haroun ◽  
Siti Nor Asma Musa ◽  
Mustapha Umar Imam

Author(s):  
Nirandorn Chanlat ◽  
Sirichai Songsermpong ◽  
Chulaluck Charunuch ◽  
Onanong Naivikul

Pre-germinated brown rice (PGBR) from non-glutinous (KDML 105) and glutinous (RD 10) varieties was produced by a soaking method in cool water at 25°C for 48 h. After germination, increased crude fiber, reducing sugar (P ? 0.05) and the ?-aminobutyric acid (GABA) content (P ? 0.01) and decreased fat were observed. The extrusion was carried out in a twin-screw extruder by a central composite design (CCD) which studied the effect of feed moisture (15.6-22.3%), screw speed (264-434 rpm) and pre-germinated glutinous brown rice flour level (0-63.6%) on the physicochemical properties of extruded snacks (expansion ratio, density, hardness, brittleness, water absorption index (WAI), water solubility index (WSI)) and GABA content. Second-order polynomial models were computed and used to generate surface plots. Increasing the feed moisture increased the density (P ? 0.01) hardness and WAI, and decreased the expansion ratio, brittleness (P ? 0.01) and WSI (P ? 0.05). Increasing the screw speed increased the expansion ratio, brittleness, WAI and WSI, and decreased the density and hardness. Increasing the levels of pre-germinated glutinous brown rice flour increased the expansion ratio (P ? 0.01), brittleness, WSI (P ? 0.01) and the GABA content (P ? 0.01), and decreased the density, hardness (P ? 0.01) and WAI (P ? 0.01), while the feed moisture content and screw speed had no significant effect on the GABA content (P > 0.05). This knowledge can be used in the design of customer-oriented extruded PGBR products.


2001 ◽  
Vol 85 (S1) ◽  
pp. S31-S45 ◽  
Author(s):  
Albert Zumbé ◽  
Adam Lee ◽  
David Storey

Polyol-containing confectionery offers considerable advantages over traditional sucrose-based confectionery in terms of reduced energy content and reduced cariogenicity. However, over-consumption of polyol confectionery may lead to gastrointestinal symptoms in some individuals. Rather than consider this as a distinct disadvantage to the consumer, this article discusses how careful consideration of the physico-chemical properties of polyols and advances in product development and formulation can provide suitable polyol-based products for the consumer. Furthermore, food legislation and ingredient pricing issues are just some of the factors that must be taken into account when designing new polyol-containing products if their functional benefits and good product quality are to be delivered to the consumer.


2016 ◽  
Vol 12 (6) ◽  
pp. 557-565 ◽  
Author(s):  
Chagam Koteswara Reddy ◽  
Lalmuan Kimi ◽  
Sundaramoorthy Haripriya

Abstract Starches isolated from three different pigmented rice varieties (Chak-hao Amubi, Chak-hao Poireiton, and Chak-hao Angangba) and investigated for their molecular structure and physico-chemical properties including amylose content, morphology, crystallinity, pasting viscosity, color, thermal property, swelling power and solubility. Significant differences were detected in physico-chemical and functional properties (p≤0.05) of rice starches. The amylose content results revealed that Chak-hao Angangba (1.93 %) and Chak-hao Poireiton (1.98 %) are waxy rice, and Chak-hao Amubi (3.16 %) is a very low-amylose rice. The morphology of rice starch granules shown polyhedral edges with an irregular shape; and the XRD patterns of rice starches exhibited A-type crystalline patterns with peaks at 2θ=15.1°, 17.1°, 18.2° and 23.0°. Waxy rice starches shown higher peak viscosity and enthalpy with lower gelatinization temperatures than very low amylose rice starches. The pasting viscosity, swelling power and solubility crystallinity of rice starches were varied significantly (p≤0.05). Finally, the present study provides knowledge for the utilization of starches isolated from three pigmented rice varieties grown in North-Eastern part of India that would be relevant for both domestic and industrial applications.


Author(s):  
Akanksha Singh ◽  
Darshan Punia

Backgrounds: Amaranthus have small lenticular seeds with a curved embryo that surrounds a starchy perisperm and with a seed coat whose color varies among black, brown, yellow and cream-white the present investigation was carried out to analyze the physico-chemical properties and nutritional composition of amaranth. Methodology: Amaranth grains were procured from the Medicinal Aromatic and Underutilized Plant Section, Department of Genetics and Plant Breeding, College of Agriculture, CCS Haryana Agricultural University, Hisar. Amaranth flour was assessed for its physico-chemical properties and nutrient composition. Results: Results on physico-chemical properties revealed that bulk density of amaranth flour was 6.06 g/ml, water absorption capacity 9.40 ml/g and fat absorption capacity 58.16%. Swelling capacity of amaranth was 2.54 ml/g. The results of proximate composition revealed that amaranth flour had 10.33% moisture. 14.29% protein, 5.80% fat, 2.84% ash and 4.91% crude fibre. Albumin, globulin, prolamin and glutelin fractions of amaranth were 9.82, 9.50, 1.42 and 1.28 per cent, respectively. The total, soluble and insoluble dietary fibre content of amaranth was 27.34, 9.40 and 17.95%, respectively. Calcium, zinc, iron and potassium contents were 272.03 mg/100 g, 5.81 mg/100 g, 13.76 mg/100 g and 329.87 mg/100 g, respectively. Conclusion: It can be concluded from the results of present investigation that amaranth is very good source of protein (14.87%), crude fibre (4.91%), ash (2.84%), dietary fibre (27.34%) and minerals specially calcium (272.03 mg/100 g), iron (13.76 mg/100 g) and potassium (329.87 mg/100 g). Amaranth, a pseudo cereal rich in nutrients can be utilized in preparation of traditional products.


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