Correlation of Phytochemical, Metal Contents and Antioxidant Activities of Black Glutinous Rice Bran and Potential Chemoprevention

Ngamdee, Paradorn; Wichai, Uthai; Jiamyangyuen, Sudarat

doi:10.17113/ftb.54.03.16.4346

Cited by 15 publications

(10 citation statements)

References 32 publications

(49 reference statements)

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“…For success, relationships among traits such as grain yield, quality, nutrient content, and stress adaptation must be studied in detail. Previous research investigated the relationship between morphological traits and grain quality [27], between mineral elements and other quality traits [28,29], and between grain yield and physiological grain traits [30]. However, a full understanding of the possibility to produce high-yielding rice of good quality at stressful conditions, in particular drought, is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Quality and Grain Yield Attributes of Rwandan Rice (Oryza sativaL.) Cultivars Grown in a Biotron Applying Two NPK Levels

Mukamuhirwa

Hovmalm

Ortíz

et al. 2018

Journal of Food Quality

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High-yielding rice cultivars with good processing quality and rich in nutrition suitable to a changing climate are of particular importance for future rice-based food production. Here, seven Rwandan rice cultivars were grown in a climate chamber of the biotron facility at the Swedish University of Agricultural Sciences, to be evaluated for their grain yield, nutritional composition, and dough mixing properties. Two di erent levels of inorganic fertilizer were applied weekly from the seedling stage until owering. Signi cant di erences for grain yield and quality attributes were found between cultivars. Jyambere showed signi cantly the highest yield while Ingwizabukungu, Nemeyubutaka, and Jyambere were high in mineral elements content. Ndamirabahinzi and Mpembuke had the highest levels of TPC and TAC. Generally, the lower fertilizer dose resulted in a better performance of the cultivars for both yield and quality attributes. Signi cantly higher content of Fe, Ca, and Ba was found in grains from the moderate fertilizer dose, whereas K, Na, P, S, Zn, Cd, and Pb increased in grains from the higher fertilizer dose. e cultivar Ndamirabahinzi showed less variability of evaluated characters across fertilizer doses. e results from this study may be used for rice breeding of cultivars with high yield and good grain quality.

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Section: Introductionmentioning

confidence: 99%

Quality and Grain Yield Attributes of Rwandan Rice (Oryza sativaL.) Cultivars Grown in a Biotron Applying Two NPK Levels

Mukamuhirwa

Hovmalm

Ortíz

et al. 2018

Journal of Food Quality

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“…The correlation between the TPC and TFC and antioxidant activity, including DPPH, NO and SO radical scavenging activity and FRAP activity of bark and wood were analysed (Tables 4 and 5). Specifically, a correlation coefficient of (r) > 0.6 shows extracts with strong antioxidant activity (57). Analysis of the strong correlation between the phenolic content and antioxidant activities showed that the TPC exhibits radical scavenging ability as follow; DPPH scavenging activity of H. cordifolia bark (r = 0.…”

Section: Correlation With Phytochemical Constituents and Ic50 Values Of Antioxidantmentioning

confidence: 99%

Phytochemical Contents and Antioxidant Activity of Medicinal Plants from the Rubiaceae Family in Thailand

Suksungworn¹,

Duangsrisai²

2021

Plant Sci. Today

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Several plants of the Rubiaceae family possess potential pharmacological properties, such as antioxidant activity, for subsequent drug development. We investigated the methanolic extracts from the bark and wood of five Rubiaceae species for phenolic and flavonoid contents and antioxidant activity. Regarding the phytochemical contents and antioxidant activity, Mitragyna diversifolia wood (437.57 ± 9.90 mg GAE g-1) and Haldina cordifolia wood (30.11 ± 0.20 mg QE g-1) displayed the highest total phenolic content (TPC) and total flavonoid content (TFC) respectively. Morinda coreia bark followed the highest antioxidant activities (IC50 = 360.58 ± 19.28 µg ml-1) in the 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity (DPPH), Catunaregam tomentosa bark (IC50 = 13.96 ± 5.32 µg ml-1) in the nitric oxide radical scavenging activity (NO), M. coreia wood (IC50 = 918.27 ± 0.16 µg ml-1) in the superoxide radical scavenging activity (SO) and M. coreia wood (IC50 = 236.65 ± 1.66 µg ml-1) in ferric reducing antioxidant power activity (FRAP). The TPC and TFC displayed strong correlations with DPPH in M. diversifolia wood and with FRAP in M. diversifolia bark and wood. We found high correlation between TFC and FRAP in all plant extracts except C. tomentosa wood, while no relation was detected between TFC and NO in all plant extracts. Comparing Rubiaceae species, the highest antioxidant potential were showed in C. tomentosa bark. Overall, it is worth mentioning that the Rubiaceae species exhibit potential as a promising source of natural antioxidants.

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“…The correlation coefficient (r) was obtained from bivariate correlation analysis and used to describe the correlation between the antioxidant activity and the content of antioxidant components (TPC, TFC, TAC, Cu, Fe, Mn, and Zn). Three correlation levels were defined: strong (r=±0.600-1.000), moderate (r=±0.400-0.599), and weak (r=±0.000-0.399) 28 .…”

Section: Correlation Between Antioxidant Activity and Tpc Tfc Tac And Mineral Contentmentioning

confidence: 99%

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2021

IJPSR

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Phytotherapeutical properties of blackthorn (Prunus spinosa L.) are well known and used in Bosnia and Herzegovina traditional medicine. This study aimed to investigate total phenolic content, total anthocyanin content, total flavonoid content, antioxidant and antibacterial activities of different ethanolic extracts from wild blackthorn flowers, leaves and fruits, obtained by microwave-assisted extraction and ultrasound-assisted maceration. The mineral profile has been identified using flame atomic absorption spectrophotometry. Plant samples were collected from three areas in Bosnia and Herzegovina. In order to detect antioxidant activity of extracts, DPPH assay was carried out. DPPH radical scavenging activity was higher for flower and fruit extract than leaf extracts, regardless of the extraction method used. Ethanolic extracts show significant antimicrobial activity against all analyzed bacterial strains (Staphylococcus aureus, Bacillus subtilis, Enterococcus faecalis, Salmonella enterica, Escherichia coli, Pseudomonas aeruginosa and antifungal activity against Candida albicans). Blackthorn fruits contained high mass fractions of some essential minerals on dry mass basis, including K, Ca, Mg, Na, Fe, and Cu. Blackthorn flower, leaf and fruit extracts exhibit a high phenolic content and a high antioxidant activity and can be used as a potent antioxidant in food and pharmaceuticals.

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Correlation of Phytochemical, Metal Contents and Antioxidant Activities of Black Glutinous Rice Bran and Potential Chemoprevention

Cited by 15 publications

References 32 publications

Quality and Grain Yield Attributes of Rwandan Rice (Oryza sativaL.) Cultivars Grown in a Biotron Applying Two NPK Levels

Quality and Grain Yield Attributes of Rwandan Rice (Oryza sativaL.) Cultivars Grown in a Biotron Applying Two NPK Levels

Phytochemical Contents and Antioxidant Activity of Medicinal Plants from the Rubiaceae Family in Thailand

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