Total phenolic contents and antioxidant activities of various solvent extracts from whole wheat and bran

Abozed, Safaa S.; El-Kalyoubi, M. H.; Abdelrashid, A.; Salama, Manal F.

doi:10.1016/j.aoas.2014.06.009

Cited by 91 publications

(60 citation statements)

References 19 publications

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“…TPCs were lowest in seeds (98.45, 109.06, and 127.40 mg/100 g DM in corn, wheat, and barley, respectively) ( Figure 2a). These TPC levels are consistent with previous studies in corn [23,24] , wheat [19,24,25] , and barley [24,26] seeds. Figure 2a shows TPC levels in seeds and the sprouts and grasses at different days.…”

Section: Tpc Quantification In Seeds Sprouts and Grassessupporting

confidence: 93%

Total phenolic contents and antioxidant activity profile of selected cereal sprouts and grasses

Niroula

Khatri

Khadka

et al. 2019

International Journal of Food Properties

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Quantitative profiling of total phenolic content (TPC) and antioxidant activity (AOA) in seeds, sprouts, and grasses of corn (Zea mays L.), wheat (Triticum aestivum L.), and barley (Hordeum vulgare L.) were performed. TPC and AOA were strongly correlated and increased with days. Grasses between 10 and 13 days showed the highest TPCs and AOA. The AOA in sprouts and grasses were a fifth and two-thirds of ascorbic acid (AA) standard, respectively, which are higher than in several popular natural antioxidants. Further cell-based studies or in vivo studies could be considered in future to draw more valuable information related to human health.

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Section: Tpc Quantification In Seeds Sprouts and Grassessupporting

confidence: 93%

Total phenolic contents and antioxidant activity profile of selected cereal sprouts and grasses

Niroula

Khatri

Khadka

et al. 2019

International Journal of Food Properties

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“…The results in Table 3 showed that AOA of wheat bran was ranged from 37.5 to 50.9% RSA as DPPH assay, 23.3 to 40.6% RSA as ABTS assay and 21.5 to 36.1 mmol L -1 sulfate/g samples as FRAP assay. These results are closed to those obtained by Abozed et al (2014) who reported that both bran varieties of wheat Gemiza-9 and Beni-suef-3 showed strong DPPH free radical scavenging activities respectively). Previous studies have used solvents of different polarity and mixture of water such as acetone 50% (Zhou and Yu 2004b); methanol 80% (Kim et al 2006) and concluded that polar The results revealed that rice bran had the highest value of TPC and TFC and had antioxidant activity ranged from 47.3 to 65.1% RSA as DPPH assay, 35.4 to 74.3% RSA as ABTS?…”

Section: Antioxidant Activity (Aoa)contrasting

confidence: 65%

“…Results showed in Table 2 were similar to those reported by Iloki-Assanga et al (2015) who suggested that acetone was more efficient in extracting of TFC than methanol and ethanol from Bucid abuceras. In this respect, Abozed et al (2014) noticed that TFC of Gemiza-9 bran had no significant difference between 70% methanol and 50% acetone extracts. Nevertheless, the other extract (Beni-suef-3bran) showed that 50% acetone containing a higher level of total flavonoid content than methanol.…”

Section: Total Flavonoids Content (Tfc)mentioning

confidence: 85%

Bioactive compounds and antioxidant activities of some cereal milling by-products

et al. 2018

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The present study was performed to evaluate the phytochemicals profiles of some cereal milling by-products such as wheat (bran, germ and shorts), rice (bran, germ and husk) and corn (bran, germ and germ meal) to assess their potentiality as bioactive compounds sources. Distilled water, ethanol, methanol, and acetone separately were used as solvents for the extraction of phytochemicals compounds. The antioxidant activity (AOA), total phenolics content (TPC), and total flavonoids content (TFC) of the extracts were investigated using various in vitro assays. The results showed that tannins content was ranged from 113.4 to 389.5 (mg/100 g sample).The study revealed that TPC and TFC of cereal by-products extracts were significantly different for various solvents. TPC content varied from 366.1 to 1924.9 mg/100 g and TFC content varied from 139.3 to 681.6 mg/100 g. High carotenoids content was observed for corn germ meal and minimum for wheat bran. Distilled water, ethanol and methanol extracts showed significantly different antioxidant activity. Significant variations were observed with regard to AOA of different cereal by-products by using various solvents. The ethanol and methanol were observed to be the best solvents to extract phenolic compounds and antioxidant activity, while acetone extract showed less efficiency. Also, the cereal milling by-products were rich in bioactive compounds and could be used as a value added products.

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“…It was agitated on a shaker with the speed of 70 rpm [10]. 70 % of ethanol was being used as it has contributed to the highest scavenging activity on DPPH radicals [11]. The extract was filtered with Whatman No.…”

Section: Methodsmentioning

confidence: 99%

Effect of Processing Temperature on Antioxidant Activity of Ficus carica Leaves Extract

Bahrin

Muhammad

Abdullah

et al. 2018

JST

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Ethanol is acknowledged as a good solvent for polyphenol extraction and is safe for human consumption. Therefore, it usually used in the extraction process of plant sample. However ethanol should be evaporated to obtain pure extract of the samples. Nevertheless, temperature involved during evaporation process would affect the antioxidant activity of the plant extract. Thus, the purpose of this study was to find out the effect of temperature used during evaporation of ethanol towards antioxidant activity of Ficus carica leaves extract. Dried powder of F. carica leaves were subjected to three sets of processing method which involve different temperatures: Set A involved maceration with 70% ethanol, followed by evaporation of ethanol in rotary evaporator at 60 o C for 12 hours, set B involved maceration with 70% ethanol, followed by evaporation of ethanol in vacuum oven at 45 o C for 12 hours, while set C involved maceration with 70% ethanol, followed by evaporation of ethanol at 25 o C (room temperature) in fume chamber for 72 hours. Antioxidant activity of extracts from each set were measured using two different in-vitro assays, including scavenging abilities on 1,1-diphenyl-2-picryl-hydrazyl (DPPH) and total phenolic content (TPC). F. carica extract from set B showed the highest antioxidant power in DPPH (3.78 mg/ml) and TPC (266.96 mg GAE/g) compared to set A and C. Thus, it can be concluded that temperature of 45 o C could promote the antioxidant activities, while high temperature would decrease the antioxidant abilities of F. carica leaves extract.

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Total phenolic contents and antioxidant activities of various solvent extracts from whole wheat and bran

Cited by 91 publications

References 19 publications

Total phenolic contents and antioxidant activity profile of selected cereal sprouts and grasses

Total phenolic contents and antioxidant activity profile of selected cereal sprouts and grasses

Bioactive compounds and antioxidant activities of some cereal milling by-products

Effect of Processing Temperature on Antioxidant Activity of Ficus carica Leaves Extract

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