scholarly journals Antioxidant activity of Phaseolus L. species seeds with different coat colour

2018 ◽  
Vol 25 (3) ◽  
Author(s):  
O. N. Bezuhla ◽  
V. V. Pozdniakov ◽  
L. N. Kobyzeva ◽  
R. L. Boguslavskiy ◽  
O. V. Antsyferova
Keyword(s):  
Antioxidant Activity ◽  
Chlorogenic Acid ◽  
Seed Coat ◽  
Plant Genetic Resources ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
High Antioxidant Activity ◽  
Olive Seeds ◽  
Mature Seeds

The aim of the research was to screen the antioxidant activity of mature seeds of related bean species using the collection samples of the National Center for Plant Genetic Resources of Ukraine: Phaseolus vulgaris L., P. multiflorus Lam., P. lunatus L. and P. acutifolius A. Grey which have different colouration of their seed shell. The determination of antioxidant activity was carried out using the improved method of the stable radical DPPH•: methyl alcohol in the eluting solution was replaced by non-toxic ethyl alcohol. The results of the analysis are presented as the equivalent of a standard antioxidant (chlorogenic acid), expressed in mg of the standard per 1 g of a sample, taking into account dilutions according to the calibration schedule. As a result of the Phaseolus L. collection screening, it was found that the antioxidant activity of bean seeds depended on the colour of the seed coat. Regardless of the bean type, white seeds had the lowest indicator (equivalent to chlorogenic acid is 0.82–0.96 mg g–1 of seed). Painted seeds have different antioxidant activity. In P. vulgaris L., olive seeds have the highest index (4.21–5.07 mg g–1 of seeds), it is 2.36–3.60 mg g–1 in wine red seeds and 2.72–3.21 mg g–1 in pink ones. And the tendency of the influence of drawing colour and the area of a seed coat is noticed. In P. lunatus L., the antioxidant activity of white seeds with a motley wine-red pattern (2.27 mg g–1 of seeds) is more than twice as high as of white seeds without a pattern (0.94 mg g–1 of seeds). In P. multiflorus Lam., all the coloured seeds had a very high antioxidant activity regardless of the seed coat colour and its pattern (6.09–6.16 mg g–1 of seeds). In P. acutifolius A. Gray, the change in this parameter, depending on the seed coat colour, was small (1.27–1.62 mg g–1 of seeds). It was found that the antioxidant activity of beans depended on the environmental conditions: the stress of plants because drought leads to its increase.

Genotypic variation for phenolic compounds in developing and whole seeds, and storage conditions influence visual seed quality of yellow dry bean genotypes

2020 ◽  
Vol 100 (3) ◽  
pp. 284-295
Author(s):  
Mei Xiong ◽  
Mengli Zhao ◽  
Zhen-Xiang Lu ◽  
Parthiba Balasubramanian
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Seed Coat ◽  
Storage Temperature ◽  
Condensed Tannin ◽  
Consumer Preference ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
Duration Of Storage

Seed coat colour is an important determinant of the visual quality of dry beans, as seeds are sold as a dry commodity. Phenolic compounds have a major effect on the colour of bean seeds. The objectives of the study were to determine the changes in phenolic compounds during seed development and in whole seeds of yellow bean genotypes with contrasting seed coat colour, and the effects of storage temperature and duration on seed phenolics and colour. Condensed tannin, phenolic acid, flavonoids, and antioxidant activity were observed as early as 10 d after flowering in the developing seeds of Arikara Yellow, which darken at harvest and during postharvest storage. In contrast, for CDC Sol and AAC Y073 seeds which remain yellow, phenolic compounds and antioxidant activity were consistently low. Seed brightness (L*) and yellow colour (b*) were negatively correlated with phenolic compounds and antioxidant activity, and conversely seed redness (a*) was positively correlated with phenolic compounds, confirming a negative influence of phenolic compounds on seed coat colour. Yellow bean genotypes had low anthocyanin but were high in β-carotene. Storage temperature influenced condensed tannin and seed coat colour, whereas the duration of storage influenced phenolic compounds, antioxidant activity, and seed coat colour. Higher temperatures (20 or 30 °C) and longer storage duration (120 or 180 d) generally resulted in darker seeds with increasing redness compared with seeds stored at 6 °C or for 60 d. AAC Y073 and CDC Sol with improved seed coat colour may increase consumer preference, value, and marketability of yellow beans.

Selection of soybean mutant lines with altered seed coat colour and their antioxidant activity

2015 ◽  
Vol 134 (5) ◽  
pp. 573-579 ◽  
Author(s):  
Kyung Jun Lee ◽  
Jin-Baek Kim ◽  
Hong-Il Choi ◽  
Bo-Keun Ha ◽  
Si-Yong Kang ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Seed Coat ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
Mutant Lines ◽  
Selection Of

Correlation Studies of Some Agronomic Characters in Sesame

1970 ◽  
Vol 6 (1) ◽  
pp. 27-31 ◽  
Author(s):  
M. Osman Khidir ◽  
H. El Gizouli Osman
Keyword(s):  
Seed Size ◽  
Seed Coat ◽  
Coat Colour ◽  
Stem Height ◽  
Agronomic Characters ◽  
Seed Coat Colour ◽  
Correlation Studies ◽  
First Maturity ◽  
Criteria For Selection ◽  
Number Of Branches

SummaryIn 90 local sesame types there was some association between seed coat colour and seed size, stem height, number of branches, number of pods, yield per plant and earliness. Forty-five coefficients show the degree of correlation between ten agronomic characters. Yield was significantly and positively correlated with all characters except the number of days to first flowering and to first maturity. Stem height, number of pods per plant and seed size seem to be the best criteria for selection in sesame.

Influence of seed coat colour associated heterogeneity on quality and storability in horse gram (Macrotyloma uniflorum)

2009 ◽  
Vol 37 (1) ◽  
pp. 232-240 ◽  
Author(s):  
N. Singh ◽  
C. Devi ◽  
A. Kak ◽  
G. Singh ◽  
A. Kumari ◽  
...  
Keyword(s):  
Seed Coat ◽  
Coat Colour ◽  
Seed Coat Colour ◽  
Horse Gram ◽  
Macrotyloma Uniflorum

scholarly journals Determination of the Phenolic Profile and Antioxidant Activity of Leaves and Fruits of SpanishQuercus coccifera

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
L. Molina-García ◽  
R. Martínez-Expósito ◽  
M. L. Fernández-de Córdova ◽  
E. J. Llorent-Martínez
Keyword(s):  
Antioxidant Activity ◽  
High Performance ◽  
Ion Trap ◽  
Food Samples ◽  
Total Phenolic ◽  
Phenolic Profile ◽  
Ion Trap Mass Spectrometer ◽  
High Antioxidant Activity ◽  
Cardioprotective Effects

In this work, we report the phytochemical composition and antioxidant activity of methanol extracts of leaves and fruits (acorns) ofQuercus coccifera(kermes oak). Forty-one compounds were characterized using high-performance liquid chromatography with electrospray multistage mass spectrometry (HPLC-ESI-MSn) with an ion trap mass spectrometer. A high percentage of the detected compounds were gallic acid derivatives, although some saccharides and flavonoids were also present. This phytochemical pattern is typical inQuercusspecies, which are rich in gallotannins. These compounds are partially responsible for the cardioprotective effects observed in different food samples containing them. We evaluated the antioxidant activity by ABTS and DPPH assays. In both cases, high antioxidant activity was observed, being higher in acorns than in leaves. The high antioxidant potential of the extracts, which is related to the high total phenolic content, indicates the potential benefit of the use of this species as a source of bioactive compounds.

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