Phenolics and Antioxidant Activity of Mulberry Leaves Depend on Cultivar and Harvest Month in Southern China

Zou, Yuxiao; Liao, Shen-Tai; Shen, Weizhi; Liu, Fan; Tang, Cuiming; Chen, Chung-Yen Oliver; Sun, Yuanming

doi:10.3390/ijms131216544

Cited by 75 publications

(73 citation statements)

References 17 publications

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“…As we know, V C is a standard antioxidant, which could be utilized for evaluating the antioxidant of MLs extract. These results were in agreement with those reported by [21], who indicated the phenolic and antioxidant activity from mulberry leaves. After SG treatment, the reducing capacities were also obviously improved for different SG powder as shown in Fig.…”

Section: Effect Of Sg On Alkaloids Contentssupporting

confidence: 83%

“…The antioxidant activity obtained by using HSA radical of MLs varied considerably. Our present result was in agreement with the report published [21], who also investigated the antioxidant from MLs and the results were from 50.9±8.6 to 72.8±6.8%. Moreover, Bruno et al also reported the value of HSA radical scavenging from mulberry [41].…”

Section: Effect Of Sg On the Antioxidant Activity Analyzed Bysupporting

confidence: 83%

“…Several recent articles are accessible on the extraction of the active components and antioxidants in mulberry leaves, fruits, barks and roots [20,21]. For this purpose, we review several techniques to determine and analyze these active components.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Superfine Grinding on the Phytochemicals and Antioxidant Activities of Mulberry Leaves

Mena¹

2016

SJPH

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Abstract:In this study, two species of mulberry leaves were used as materials and four different size powders (about 20-115 µm, 15-20 µm, 10-15 µm and <10 µm) were prepared. The effects of superfine grinding (SG) on the extraction of active components from mulberry leaves (MLs) and their antioxidant activities were investigated. The results indicated that the contents of the active component such as polyphenol, polysaccharides, alkaloids were increased markedly with the decreasing in the particle size, but there was a bit difference in flavonoids. Additionally, the antioxidants properties of MLs treated on 1,1-diphel-2-picrylhydraxyl (DPPH) radical scavenging activity and ferric reducing antioxidant power (FRAP) were also increased, but the scavenging activity in hydroxyl radical scavenging assay (HAS) decreased in the size of D10. These results indicated that SG could improve the extraction efficiency of active components from MLs and make its antioxidant activity enhance, implying that SG can be an effective way to improve the quality and functionality of MLs in foodstuff and pharmacological field.

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Section: Effect Of Sg On Alkaloids Contentssupporting

confidence: 83%

Section: Effect Of Sg On the Antioxidant Activity Analyzed Bysupporting

confidence: 83%

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Effect of Superfine Grinding on the Phytochemicals and Antioxidant Activities of Mulberry Leaves

Mena¹

2016

SJPH

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“…The quercetin glycosides and free quercetin in buckwheat flowers, leaves, stems, and achenes were discovered by Dadakova in 2010. Plant polyphenol content is influenced by many factors such as variety, location, harvest month and others (Zou et al, 2012;Gunaratne et al, 2013;Zhang et al, 2013). Meanwhile, the phenolic contents may vary in different tissues (Pugliese et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Rutin, quercetin, and free amino acid analysis in buckwheat (Fagopyrum) seeds from different locations

Bai¹,

Feng²,

Hao³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. In this study, five common buckwheats and nine tartary buckwheats grown at different locations were analyzed for the contents of rutin, quercetin, and amino acids by high-performance liquid chromatography and spectrophotometry. The rutin content was higher than quercetin in buckwheat seeds. Rutin content was in the range from 0.05 (0.05 g per 100 g dry seeds) to 1.35% of buckwheat seeds. Quercetin content varied from 0.01 to 0.17% and in some common buckwheats it was even difficult to detect. Comparatively, tartary buckwheat seeds contained more rutin and quercetin than common buckwheat seeds. Meanwhile, the bran has higher rutin content than the farina in tartary buckwheat seeds, with a respective content of 0.45 to 1.19% and 0.14 to 0.67%. It was found that amino acid contents were around 1.79 to 12.65% (farina) and 5.74 to 7.89% (bran) in common buckwheats, and 1.73 to 5.63% (farina) and 2.64 to 16.78% (bran) in tartary buckwheat seeds. The highest total rutin content was found to be 1.35% in tartary buckwheat seeds from Sichuan, China. The highest total amounts of amino acid were detected to be 20.13% in tartary buckwheat seeds from Changzhi, Shanxi Province (China). Our 19041 Rutin, quercetin, and amino acid analysis in buckwheat ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (4): 19040-19048 (2015) results suggested that food products made of whole-buckwheat flour are healthier than those made of fine white flour.

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“…Maybe these differences between the cultivars are associated with a genetic effect of cultivar. Zou et al (2012) reported that genotype and growing environment can affect phytochemical production in an interactive manner. Since all the samples were collected from the same orchard, the differences could not be ascribed to growing location, environment or agricultural practice.…”

Section: Flavonoidsmentioning

confidence: 99%

Influence of Harvest Time on Biologically Active Compounds and the Antioxidant Activity in Leaves of Mulberry Grown in Lithuania

Levickienė

Jarienė

Gajewski

et al. 2017

Not Bot Horti Agrobo

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The aim of this study was to establish the influence of harvest time on the contents of flavonoid compounds (rutin, isoquercetin, nicotiflorin, and astragalin) and chlorogenic acid, as well as the antiradical activity in white mulberry (Morus alba L.) leaves grown in Lithuania. Mulberry leaves contain a wide range of bioactive compounds, such as flavonoids and phenolic acids, which are responsible for beneficial effects on human health. Leaves from two mulberry cultivars were collected from July to September in 2015-2016. Quantitative determinations of four flavonoids and chlorogenic acid were conducted by HPLC method and antiradical activity using the 2.2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method. The results showed that the total flavonoid contents of mulberry leaves in the two cultivars ranged from 921.92 to 1512.02 mg 100 g −1 (dry matter). The highest accumulated rutin, nicotiflorin, and chlorogenic acid contents and the greatest antioxidant activity were found in the leaves of 'Plodovaja 3'. The bioactive compounds in the leaves of the mulberry cultivars varied over a period of time, where 'Turchanka' and 'Plodovaja 3' accumulated the highest total flavonoid contents in September and August, respectively. In both cultivars, the antiradical activity was highest in September. There were a very strong positive correlations between the antiradical activity as determined using the DPPH method and the chlorogenic acid contents (r = 0.887, p < 0.05) and the isoquercetin contents (r = 0.848, p < 0.05).

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Phenolics and Antioxidant Activity of Mulberry Leaves Depend on Cultivar and Harvest Month in Southern China

Cited by 75 publications

References 17 publications

Effect of Superfine Grinding on the Phytochemicals and Antioxidant Activities of Mulberry Leaves

Effect of Superfine Grinding on the Phytochemicals and Antioxidant Activities of Mulberry Leaves

Rutin, quercetin, and free amino acid analysis in buckwheat (Fagopyrum) seeds from different locations

Influence of Harvest Time on Biologically Active Compounds and the Antioxidant Activity in Leaves of Mulberry Grown in Lithuania

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