Antioxidant activity of some leafy vegetables of India: A comparative study

Dasgupta, Nabasree; De, B. K.

doi:10.1016/j.foodchem.2006.02.003

Cited by 205 publications

(126 citation statements)

References 22 publications

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“…Amaranthus species also contains various volatiles and polyphenols, and has antioxidant, antimalarial, and antiviral properties, which prevent cancer, cardiovascular diseases, diabetes, etc. (Dasgupta & De, 2007;Jiang et al, 2011;Khandaker et al, 2008;Scalbert et al, 2005;Shukla et al, 2010). It was reported that amaranth contains protein, ascorbic acid, and mineral nutrients of Ca, Fe, Mg, P, K, and Na, which are considered as the nutritional value in vegetables (USDA, 1984).…”

Section: Glasshouse Experiment: Effects Of Soil Types On Amaranth 4 Lmentioning

confidence: 99%

Effects of soil types and fertilizers on growth, yield, and quality of edibleAmaranthus tricolor linesin Okinawa, Japan

Ohshiro

Hossain

Nakamura

et al. 2016

Plant Production Science

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Section: Glasshouse Experiment: Effects Of Soil Types On Amaranth 4 Lmentioning

confidence: 99%

Effects of soil types and fertilizers on growth, yield, and quality of edibleAmaranthus tricolor linesin Okinawa, Japan

Ohshiro

Hossain

Nakamura

et al. 2016

Plant Production Science

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“…The results of the present where the extraction of thirty-seven raw vegetables was carried out by using mixture of four different solvents (Sulaiman et al 2011). According to Dasgupta & De (2007), Moringa oleifera was the second most important source of total phenol from 11 leafy vegetables with 184 µg GAE·mg -1 concentration on dry weight basis. Verma et al (2009) have reported that the total phenol content in moringa leaves to vary from 33.82 to 336.95 mg GAE·g -1 in different fractions of same sample, using different solvents.…”

Section: Total Phenols Contentmentioning

confidence: 99%

Comparison of Measurements of Antioxidant Activity in the Selected Leafy Vegetables Depending on Extraction Solvent

Jaiswal

Patel

Saxena

et al. 2017

Journal of Horticultural Research

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Four leafy vegetable species, spinach (Spinacia oleracea), amaranthus (Amaranthus viridis), fenugreek (Trigonella foenum-graecum) and bathua (Chenopodium album), were extracted with three different solvents (80% ethanol, 80% acetone and water) for maximum recovery of phenol and antioxidant compounds in the extract. The results of extraction were compared with extraction from moringa (Moringa oleifera) leaves that is known as a very rich source of antioxidants. The study showed that, it is very difficult to justify a single solvent for extraction of antioxidant compounds from different plants. Results from different solvents used for extracting the bioactive compounds mostly depend on the type of compound extracted (polar/medium polar/non-polar) present in leafy matrices. Here, 80% acetone extract showed highest total phenol content in moringa leaves but the overall antioxidant activity in the leaves of four vegetables was observed to be better after extraction with 80% ethanol. Nevertheless, in most assays, independent of solvent used for extraction, the moringa leaves were the richest source of polyphenols and antioxidants.

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“…[5] Flavonoids, tannins and other phenolic constituents of plant food have been proved as potential antioxidant moieties. [6] During certain diseased conditions, as well as during aging, there is a need to boost the antioxidant capacity of body to potentiate the immune mechanism. The antioxidants preserve the adequate function of neuronal cells against homeostatic disturbances.…”

Section: Introductionmentioning

confidence: 99%

In-vitro studies on the antioxidant assay profiling of Withania somnifera L. (Ashwagandha) Dunal root: Part 1

Pal¹,

Naika²,

Khanum³

et al. 2011

Pharmacognosy Journal

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a b s t r a c tWithania somnifera Dunal, commonly known as ashwagandha, has been used for centuries in ayurvedic medicine to increase longevity and vitality. Various groups of researchers support its polypharmaceutical uses by confirming anti-inflammatory, immuno-modulatory and antistress properties in the whole plant extract. The present investigation adds up the antioxidant assay profiling in this list. The Ashwagandha root extracts were prepared in different solvents of varied polarity in a sequential fashion. The maximum yield (5.8%) and total polyphenolic compounds (TPC, 88.58 µg GAE/mg extract) were recorded in methanolic fraction. All the extracts were screened for their potential antioxidant activities using tests such as free radical scavenging activity, metal chelation activity, hydroxyl radical scavenging activity, superoxide radical scavenging activity and hydrogen peroxide scavenging activity. Results of study showed methanolic extract as the most potent fraction and a strong correlation could be established with its TPC. Overall, the study suggests that Ashwagandha root extract could be of great use for the preparation of antioxidant rich nutraceuticles to treat various human diseases and its complications. It is quite likely that the antioxidant capacity of plant/root is one of the reasons for its established anti-stress, anti-inflammatory and immunomodulatory properties.

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Antioxidant activity of some leafy vegetables of India: A comparative study

Cited by 205 publications

References 22 publications

Effects of soil types and fertilizers on growth, yield, and quality of edibleAmaranthus tricolor linesin Okinawa, Japan

Effects of soil types and fertilizers on growth, yield, and quality of edibleAmaranthus tricolor linesin Okinawa, Japan

Comparison of Measurements of Antioxidant Activity in the Selected Leafy Vegetables Depending on Extraction Solvent

In-vitro studies on the antioxidant assay profiling of Withania somnifera L. (Ashwagandha) Dunal root: Part 1

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