Phenolic compounds and antioxidant activity of rice

Walter, Melissa; Marchesan, Enio

doi:10.1590/s1516-89132011000200020

Cited by 128 publications

(95 citation statements)

References 43 publications

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“…Perusals of data indicate that White seeded variety has low content of polyphenol than other varieties and this is positively correlated to its colour. Similar reports have been documented which states that dark varieties have high polyphenol content than light (Walter & Marchesan, 2011, Li et al, 2015. This variation in polyphenols may be associated to various factors such as genotypic effect, degree of maturity and environment effect (Radhouane & Fattouch, 2009).…”

Section: Polyphenol Contentsupporting

confidence: 73%

Antinutrient and Mineral Content of Thirteen Different Varieties of Pearl Millet Locally Grown in Haryana, India

Kaushik¹,

Grewal²

2017

Int.J.Curr.Microbiol.App.Sci

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Section: Polyphenol Contentsupporting

confidence: 73%

Antinutrient and Mineral Content of Thirteen Different Varieties of Pearl Millet Locally Grown in Haryana, India

Kaushik¹,

Grewal²

2017

Int.J.Curr.Microbiol.App.Sci

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“…This means that these phenolic acids probably relate to flooding tolerance of rice. In point of fact, these phenolic acids are commonly found in rice and other plants [20]. However, the concentrations were low and their presence was in bound form, which is linked to another sugar or ester [21].…”

Section: Anaerobic Flooding Germination and Phenolic Compounds Of Ricementioning

confidence: 99%

Involvement of Phenolic Compounds in Anaerobic Flooding Germination of Rice (<i>Oryza sativa</i> L.)

Khang

Lang

et al. 2016

ILNS

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By this study, thirty rice varieties were evaluated for anaerobic flooding tolerance using the direct sowing method. Phenolic profiles of strong and weak tolerant varieties were identified and compared based on HPLC chromatograms. The germination rates and shoot heights of rice were recorded for calculating the seedling vigor, which indicate the tolerant ability of rice in flooding condition. The results revealed a high variation of germination rate (10.01 to 100%), shoot height (0.35 to 78.17 mm) and seedling vigor (0.05 to 72.83). There was a high correlation between (r = 0.71) germination rate in 5 cm and 10 cm flood. Phenolic and flavonoid contents of the strong tolerant cultivar significantly and proportionally increased in the flooding levels (5 cm and 10 cm). There was a total difference in terms of number of phenolic acids found in the strong and weak tolerant varieties. In particular, six phenolic acids (gallic acid, catechol, caffeic acid, syringic acid, vanillin, and ellagic acid) were only identified with high concentration in the strong tolerant cultivar. The findings suggest that the phenolics presented in the strong tolerant varieties probably have a certain function in response and adaptation to anaerobic flooding condition. Further researches on exogenous application of these phenolic acids to increase the flooding tolerant level of rice should be continued at both green house and field treatments.

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“…Several phenol compounds have already been identified in rice (Walter and Marchesan 2011). The rice variety of "Karungkuravai" exhibited a good quantity of phenolic content when compared to "Mappilai Samba".…”

Section: Total Phenolic Content (Tpc)mentioning

confidence: 99%

Study of chemical composition and volatile compounds along with in-vitro assay of antioxidant activity of two medicinal rice varieties: Karungkuravai and Mappilai samba

et al. 2014

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The objective of this study is to analyze the chemical composition and volatiles present in two medicinal rice varieties of "karungkuravai" and "mappilai samba" and to investigate their total phenolic content and bio activity. Chemical composition of the rice varieties was analyzed using gas chromatography/mass spectroscopy (GC-MS), the volatile compounds are identified using static head space analysis (SHS) followed by GC-MS. Total phenolic content (TPC) is estimated using Folin Ciocalteu colorimetric method, antioxidant assay is done using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) assay and ferric reducing antioxidant power (FRAP) assay. GC-MS and SHS analysis identified pharmaceutically important phytochemicals present in the rice variety. The compounds like "curlone" and "7-chloro-1,3-dihydro-5-phenyl-1-(trimethylsilyl)-2H-1-4-benzodiazapene-2-one" are identified for the first time in any rice variety. Phenols are found to be present in both rice varieties. Both rice varieties also showed antioxidant activity in both DPPH and FRAP assays and the IC 50 values were 91.08 μg/ml and 359.93 μg/ml for "karungkuravai" and "mappilai samba", respectively. . The correlation coefficient and regression analysis of total phenolic content with DPPH assay and FRAP assay show significant positive correlation coefficient values and coefficient of regression values.

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Phenolic compounds and antioxidant activity of rice

Abstract: ABSTRACT

Cited by 128 publications

References 43 publications

Antinutrient and Mineral Content of Thirteen Different Varieties of Pearl Millet Locally Grown in Haryana, India

Antinutrient and Mineral Content of Thirteen Different Varieties of Pearl Millet Locally Grown in Haryana, India

Involvement of Phenolic Compounds in Anaerobic Flooding Germination of Rice (<i>Oryza sativa</i> L.)

Study of chemical composition and volatile compounds along with in-vitro assay of antioxidant activity of two medicinal rice varieties: Karungkuravai and Mappilai samba

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