Effects of Extraction Process on Phenolic Content and Antioxidant Activity of Soybean

Liên, Dương Thị Phượng; Phan, Tram; Toan, Ha Thanh

doi:10.11648/j.jfns.s.2015030102.16

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…The antioxidant activity of the phenolic-rich cultivar (Giza 35) showed high levels of DPPH radical scavenging activity. Furthermore, the values observed in the present study were in line with those obtained by other researchers [12][13][14].…”

Section: Discussionsupporting

confidence: 93%

Powerful Antioxidants and Cytotoxic Activities of the Methanol Extracts from Eight Soybean Cultivars

et al. 2022

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In the present study, the chemical composition and total phenolic (TPC) and total flavonoid contents (TFC) of eight soybean cultivars (Giza 21, Giza 22, Giza 35, Giza 111, Giza 82, Giza 83, Crawford, and Holliday) were estimated. Moreover, antioxidant activity and in vitro cytotoxic activities against HepG-2 and MCF-7 were evaluated. Giza 21, Giza 111, and Crawford cultivars recorded higher than 40% crude protein. The analysis revealed that TPC values in seed extracts ranged from 10.5 mg GAE/g extract in Giza 35 to 6.4 mg GAE/g extract in Giza 22. TFC varied from 1.20 mg QE/g extract in Giza 111 to 0.55 mg QE/g extract in Crawford. Giza 35 exhibited the highest content of genistein and daidzein and the highest free radical scavenging activity (61.833%). The results of the MTT assay demonstrated that the soybean methanolic extracts inhibited the proliferation of HepG-2 and MCF-7 cells in a dose-dependent manner. Giza 35 exhibited the highest cytotoxic activity. In conclusion, Giza 35 cultivar recorded the highest TPC and TFC values and antioxidant and cytotoxic activities. Therefore, this cultivar can be used as a source for the production of pharmaceutical and medicinal products rather than as a nutritional source of protein.

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Section: Discussionsupporting

confidence: 93%

Powerful Antioxidants and Cytotoxic Activities of the Methanol Extracts from Eight Soybean Cultivars

et al. 2022

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“…Additionally, it has been noticed that acetone performs better compared to other organic reagents for removing phenolics from a variety of raw materials, like buckwheat ( Fagopyrum esculentum Möench) (Sun & Ho, 2005), soybean ( Glycine max L.) (Lien et al., 2015), and brewers’ spent grain (Socaci et al., 2018). In general, it is widely assumed that the greater the molecular weight of the reagent, the lower the polarity, making it easier to extract substances with similar molecular weights (Mokrani et al., 2016).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, once equilibrium is attained, active component yields will not keep increasing (Lien et al., 2015; Tan et al., 2011). In this experiment, the optimal ratio was determined to be 1:15, as this ratio had the highest BPC value.…”

Section: Resultsmentioning

confidence: 99%

Optimizing extraction conditions and isolation of bound phenolic compounds from corn silk (Stigma maydis) and their antioxidant effects

Khan

Hayat

Khanum

et al. 2023

Journal of Food Science

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During the processing of maize, Stigma maydis, also known as corn silk, is normally discarded as waste. Phytochemical research was carried out on the S. maydis to use it as a valuable source of bioactive components. This research aimed to maximize the recovery of free and bound phenolic compounds from corn silk under optimal experimental conditions. Response surface design was operated to optimize the alkaline hydrolysis extraction of bound phytochemicals from corn silk based on total phenolic content and DPPH radical scavenging activity. The optimum conditions (i.e., NaOH concentration 2 M, digestion time 135 min, digestion temperature of 37.5°C, the solid‐to‐solvent ratio of 1:17.5, and acetone) were obtained. The optimum parameters were used to extract the corn silk. The structures of two compounds isolated from ethyl acetate extracts were then identified as friedelin (1) and (E)‐4‐(4‐hydroxy‐3‐methoxyphenyl) but‐3‐en‐2‐one (2). The DPPH, H2O2, and ABTS % inhibition of the compounds is as follows: compound (1) 74.81%, 76.8%, 70.33% and compound (2) 70.37%, 56.70% and 57.46%, respectively. The current study has opened previously unexplored perspectives of the composition of bound compounds in corn silk and established the foundations for more effective processing and utilization of corn waste. Practical Application Bound phenolic compounds from corn silk under optimal experimental conditions were obtained. Corn silk can be utilized as a type of medicinal herb as well as a source of inexpensive natural antioxidants.

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“…In the current study, all these compounds significantly increased after cooking, with the highest amounts found in sample GKB4 (cooked Koshihikari GBR, extracted using 80% methanol with 2 h of sonication at RT). For extraction, water, methanol, 80% acetone, and 80% ethanol were identified as more effective solvents for obtaining phenolic and flavonoid compounds and antioxidant capacities [41,42].…”

Section: Figurementioning

confidence: 99%

Momilactones and Phenolics in Brown Rice: Enrichment, Optimized Extraction, and Potential for Antioxidant and Anti-Diabetic Activities

Hasan,

Anh,

Xuan

2023

Separations

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This is the first study aiming to enrich momilactones A (MA) and B (MB) and phenolic compounds in germinated brown rice (GBR) and non-GBR var. Koshihikari and Milky Queen through the cooking process. Extraction methods for these compounds were optimized by applying various conditions, including solvents (80% methanol and 80% ethanol), heat (80 °C), and sonication (2 h). Momilactone and phenolic quantities were determined by ultra-performance liquid chromatography–electrospray ionization mass spectrometry (UPLC–ESI-MS) and high-performance liquid chromatography (HPLC), respectively. Accordingly, cooked Koshihikari GBR extract using 80% methanol and sonication (GKB4) revealed the highest amounts of tricin, caffeic, ρ-hydroxybenzoic, ρ-coumaric, ferulic, salicylic, and cinnamic acids (1.71, 1.01, 0.62, 0.45, 0.94, 2.50, and 0.37 mg/g DW, respectively), consistent with the strongest antiradical activities in DPPH and ABTS assays (IC50 = 1.47 and 1.70 mg/mL, respectively). Non-cooked GBR Koshihikari extract using 80% ethanol and sonication (GKB9) exhibited the highest MA and MB contents (147.73 and 118.8 μg/g DW, respectively). Notably, GKB9 showed potent inhibition of α-amylase and α-glucosidase (IC50 = 0.48 and 0.15 mg/mL, respectively), compared with the anti-diabetic drug acarbose (IC50 = 0.26 and 2.48 mg/mL, respectively). The findings hold significant implications for developing phenolic- and momilactone-enriched brown rice with health-beneficial properties.

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Effects of Extraction Process on Phenolic Content and Antioxidant Activity of Soybean

Cited by 7 publications

References 29 publications

Powerful Antioxidants and Cytotoxic Activities of the Methanol Extracts from Eight Soybean Cultivars

Powerful Antioxidants and Cytotoxic Activities of the Methanol Extracts from Eight Soybean Cultivars

Optimizing extraction conditions and isolation of bound phenolic compounds from corn silk (Stigma maydis) and their antioxidant effects

Momilactones and Phenolics in Brown Rice: Enrichment, Optimized Extraction, and Potential for Antioxidant and Anti-Diabetic Activities

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