Correlation study among the extraction techniques, phytochemicals, and antioxidant activity of Nepeta spicata aerial part

Patial, Poonam Kumari; Sharma, Ajay; Kaur, Inderpal; Cannoo, Damanjit Singh

doi:10.1016/j.bcab.2019.101275

Cited by 22 publications

(19 citation statements)

References 40 publications

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“…Similar results have been reported previously (Lahouar et al, 2014;Chen et al, 2015). However, the correlation coefficients were lower than those reported by Patial et al (2019), in which the FRAP values were strongly correlated with the TPC and TFC with r of 0.99. As shown in Figure 2, the correlations between the chelating activities of the different extracts and the TPC, TFC, or TIPCC were poor.…”

Section: Correlation Analysissupporting

confidence: 90%

Phenolic contents and antioxidant activities of solvent extracts from four edible flowers

Yan¹,

Zhou²,

Zhao³

et al. 2022

IFRJ

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In order to identify new sources of natural antioxidants, the antioxidant activities of various solvent extracts from four edible flower samples [Wisteria sinensis (Sims) DC., Benincasa hispida (Thunb.) Cogn, Luffa cylindrica (L.) Roem, and Cucurbita pepo L.) were systemically investigated. The total phenolic content (TPC) and total flavonoid content (TFC), and individual phenolic profile of each extract were investigated, and antioxidant activities were measured by the DPPH radical scavenging activity, superoxide radical scavenging activity, total reduction capability, and ferrous ions chelating activity. Results revealed that all flower extracts exhibited antioxidant activities, and contained certain amounts of phenolic compounds. Specifically, different solvents exhibited different efficiencies in the extraction of phenolics, flavonoids, and compounds with antioxidant activities. The 70% ethanolic extract from B. hispida yielded the highest TPC (49.92 mg GAE/g DW), superoxide radical scavenging activity (IC50, 0.073 mg/mL), and FRAP value (18.05 mg of GAE/g DW). The highest TFC was obtained with the ethanolic extract of W. sinensis (30.39 mg QE/g DW), and the contents of apigenin, luteolin, and myricetin in the ethanolic extract of W. sinensis were significantly higher than those in the other extracts. The 40% ethanolic extract of L. cylindrica yielded the highest DPPH scavenging capacity (IC50, 0.340 mg/mL), and water extract of B. hispida yielded the highest chelating activity (0.027 mg/mL). Correlation analysis indicated that total phenolics and flavonoids in the extracts were the major contributors to the DPPH scavenging activities and FRAP activities. Overall, results demonstrated that these edible flowers could serve as useful source of natural antioxidants, and be used as functional food ingredients.

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Section: Correlation Analysissupporting

confidence: 90%

Phenolic contents and antioxidant activities of solvent extracts from four edible flowers

Yan¹,

Zhou²,

Zhao³

et al. 2022

IFRJ

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“…In defense against free radicals, the use of antioxidants has been proposed (Patial et al 2019), making it necessary to supply the human body with a diet with nutrients such as vitamin C, vitamin E, and β-carotene. These substances offer high antioxidant activity and supply the deficiency of nutrients in the body (Kumar et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Effects of ultrasound on submerged fermentation for producing antioxidant metabolites from Botryosphaeria dothidea

Valente

Confortin

Luft

et al. 2020

Braz. J. Chem. Eng.

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Antioxidant compounds were produced from submerged fermentation using Botryosphaeria dothidea. Sonication times (1-15 min) and agitations (0-150 rpm) applied to different fermentation phases (2-7 days) were evaluated for their effect on the broth antioxidant activity. In approximately 70% of assays performed with ultrasound, the antioxidant activity of the broth containing exocellular metabolites was higher than the control (without sonication), reaching a maximum value of 96%. The solid fraction (biomass after supernatant removal) corresponding to the best assay of antioxidant activity was submitted to extractions with water, ethanol or ethyl acetate to recover intracellular metabolites. The yields of extracts were 3.7 ± 2.6 wt %, 20.6 ± 3.9 wt % and 32.0 ± 4.2 wt % for ethyl acetate, ethanol and water, respectively. The use of ethanol could provide a larger number of compounds such as pentadecanoic acid, ergosta-5,8,22-trien-3-ol, and 1,4-diaza-2,5-dioxobicyclo [4.3.0] nonane. Both the supernatant and solid fractions revealed some bioactive compounds with promising antioxidant activity with the potential to replace some synthetic antioxidants.

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“…The wavelength at 777.12 cm −1 was defined as N‐O stretching of inorganic nitrogen (Ko et al, 2004). Finally, the IR spectrum of 515.47 cm −1 was characterized as the haloalkanes (C–Cl stretching) (Patial et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Biological activities and potential of organic banana (Musa acuminata) peel extract in enhancing the immunity of giant freshwater prawn (Macrobrachium rosenbergii)

Naksing

Rattanavichai

Teeka

et al. 2022

Aquaculture Research

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This research aimed to optimize the extracting condition of banana peel (BP) and to investigate the effect of organic banana peel extract (BPE) on the immunity of giant freshwater prawn (Macrobrachium rosenbergii). The result demonstrated that the optimum extracting condition of organic BPE was 50% v/v of methanol at 100°C for 10 min. Under this condition, the maximum total phenolic content and extraction yield of 10.44 mg of gallic acid equivalents (GAE) per g of dry matter (mg GAE/g DM) and 33% w/v were obtained respectively. The organic BPE could inhibit an aquatic pathogen Aeromonas hydrophila at the minimum inhibitory concentration of 625 µg/disc. The main phytochemicals in organic BPE showed two major biological functions, which are antioxidant and antipathogenic activities. Subsequently, the effects of organic BPE on the immunity of M. rosenbergii were investigated. The results demonstrated that the organic BPE could increase immunity and phagocytic activity and decrease the susceptibility of M. rosenbergii. Moreover, the organic BPE could also increase total as well as differential haematocyte count, decrease the coagulation time and increase the total protein in serum of M. rosenbergii. The phagocytic activity of prawn was enhanced to 82.00% by using an organic BPE at 6 µg/g. At the same time, the cumulative mortality was declined to lower 20% after 6 days of organic BPE injection. In conclusion, organic BPE can be a potential immunostimulant in giant freshwater prawn culture. The utilization of BP in aquaculture can further add the value of BP and reduce organic pollutants.

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Correlation study among the extraction techniques, phytochemicals, and antioxidant activity of Nepeta spicata aerial part

Cited by 22 publications

References 40 publications

Phenolic contents and antioxidant activities of solvent extracts from four edible flowers

Phenolic contents and antioxidant activities of solvent extracts from four edible flowers

Effects of ultrasound on submerged fermentation for producing antioxidant metabolites from Botryosphaeria dothidea

Biological activities and potential of organic banana (Musa acuminata) peel extract in enhancing the immunity of giant freshwater prawn (Macrobrachium rosenbergii)

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