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Which antioxidant is present in spinach? 

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The inhibition of spinach HPR-2 by oxalate is by far the strongest for any known inhibitor of leaf HPR and GR activities.
On the basis of the ORAC results, green pepper, spinach, purple onion, broccoli, beet, and cauliflower are the leading sources of antioxidant activities against the peroxyl radicals.
The hydrophilic antioxidant activity of solidly pigmented red or purple potatoes is comparable to brussels sprouts or spinach.
This indicates that spinach extract pre - treatment renders protection against various biochemical changes in the mice testis to some extent if taken continuously which might be due to synergistic effect of antioxidant constituents present in the spinach.
The overall results of this study demonstrate that seasoned cooked spinach would be the most efficient way of ingestion to consume antioxidant compounds.
Over-winter spinach, which was planted in late fall and harvested in the spring, had much higher levels of total phenolics and antioxidant capacity than spinach planted in early fall and harvested in late fall, indicating that growing conditions, as well as biotic and abiotic stresses, influenced phenolic metabolism.
clearly show that spinach maintains its growth, mineral composition, and antioxidant capacity up to ECiw = 9.4 dS m−1.
Genotype also appeared to play an important role in affecting phenolic metabolism and antioxidant capacity in spinach.
Spinach extracts have been demonstrated to exert numerous beneficial effects, such as chemo- and central nervous system protection and anticancer and antiaging functions.
Our results indicate that plant breeders can select for increased phenolic content to increase antioxidant capacity in spinach cultivars, or the crops can be grown in different seasons or under certain stress conditions to elevate levels of antioxidants.
Additionally, plant breeders can select for increased phenolic content to increase antioxidant capacity of spinach genotypes.
We conclude that the effect of spinach products on lipid oxidation is affected by processing.
revealed the potential nutraceutical values of spinach which can further explored to effectively use it by preparing suitable formulation.

Related Questions

What is the mechanism of antioxidant activity of Spinacia oleracea?5 answersThe mechanism of antioxidant activity in Spinacia oleracea involves the presence of powerful natural antioxidants (NAO) in water extracts of spinach leaves. These antioxidants have been identified as glucuronic acid derivatives of flavonoids and p-coumaric acid derivatives. The water extracts of spinach leaves contain hydrophilic and hydrophobic peaks that show antioxidant activity when tested using different assays. The antioxidant components in the aqueous extract of spinach leaves include flavonoids and p-coumaric acid derivatives. Thiol-treated spinach chloroplast fructose bisphosphatase is severely inhibited by H2O2, indicating that essential thiol groups are oxidized during H2O2 inactivation. The presence of phenolic compounds in Spinacia oleracea, such as chlorogenic, caffeic, p-coumaric, ferulic, and rosmarinic acids, contribute to its antioxidant activity.
What other spinach varieties are there?4 answersThere are several other spinach varieties mentioned in the abstracts. One variety is NUN 05004 SPS, which is a new hybrid variety of spinach. Another variety is NUN 06258 SPS, which is also a new hybrid variety of spinach. Additionally, there is a variety called NUN 0002 SP or Andromeda F1, which is characterized by producing high quality leaves for the fresh market and/or the processing industry. These abstracts provide information about different spinach varieties, including their characteristics and potential uses.
What is the best compound fertilizer for spinach?3 answersThe best compound fertilizer for spinach can be determined based on the specific components used in the fertilizer. Different papers propose different formulations for high-performance compound fertilizers for spinach. Chen Ping suggests a fertilizer containing plain sandy soil, zeolite powder, rice bran, soybean product waste residues, urea, duck manure, sodium gluconate, moss, an enzyme, spirulina residues, cinnamic acid, a plant growth regulator, sodium selenite, diethylenetriamine, bacillus subtilis, and a dispersant. Chen Qifen proposes a fertilizer made from ammonium nitrate, calcium magnesium phosphate fertilizer, potassium chloride, plant ash, sweet potato powder, animal dung, animal hair, white sugar, brown sugar, an enzyme microorganism quick decomposing agent, attapulgite, lignite, ground phosphate rock, potassium nitrate, kaolin, enzyme microorganisms, humus, superphosphate, magnesium sulfate, zinc sulfate, copper sulfate, and sodium molybdate. Zhou Maosen suggests a fertilizer containing urea, potassium sulfate, ammonium phosphate, ammonium hydrogen carbonate, composite micro fertilizer, chicken manure, melon vine powder, fruit residues, rice husk powder, garlic residues, mushroom residues, compound bacteria, and composite amino acid. Li Chunyan proposes a fertilizer made from urea, calcium phosphate, sodium nitrate, calcium nitrate, potassium fulvate, potassium dihydrogen phosphate, modified bentonite, compound amino acid, zymocyte, plant straw, kitchen garbage, and brown sugar. Ping Yue suggests a fertilizer containing glycine, glutamine, methionine, leucine, tyrosine, proline, radix polygonati officinalis, spirifer, lycopus lucidus, and qulian.
What contaminant that has great impact of high of TSS on Spinach seed germination growth?5 answersThe contaminant that has a great impact on the high total suspended solids (TSS) on spinach seed germination growth is cadmium (Cd). The study conducted by Khan et al. found that increasing concentrations of Cd significantly reduced the growth parameters of spinach seedlings, including shoot and root fresh and dry weights, root and shoot lengths, shoot diameter, number of leaves, cell size, and mitotic index. Cd toxicity was observed to be the highest among the selected heavy metals, followed by lead (Pb) and zinc (Zn). The uptake patterns of Cd, Pb, and Zn in both single and mixture forms showed antagonistic impacts on each other, with Cd/Pb treated soil resulting in the highest toxicity. Therefore, Cd contamination has a significant negative effect on the germination and growth of spinach seeds.
What is water spinach rich in?5 answersWater spinach is rich in bioactive compounds such as total chlorophylls, carotenoids, total polyphenols, and total flavonoids. It also contains iron, which makes it a good dietary food for people suffering from anemia.
What are the antioxidants used in food?5 answers

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