Some physico-chemical characteristics of black mulberry (Morus nigra L.) genotypes from Northeast Anatolia region of Turkey
2008
Ercisli, Sezai | Orhan, Emine
In this study, some selected physico-chemical properties (antioxidant activity, ascorbic acid, fatty acids, fruit colour, fruit juice yield, fruit weight, organic acids, pH, total phenolic and total soluble solid contents) of five black mulberry (Morus nigra L.) genotypes grown in the Northeast Anatolia region of Turkey was investigated. The total phenolic and antioxidant activity of methanol extract of black mulberry fruits were determined according to Folin-Ciocalteu and β-carotene bleaching method assays, respectively. Fatty acids of mulberry fruits were determined by using gas chromatography. Total phenolic content was observed in black mulberry fruits between 1943 and 2237mg gallic acid equivalents/100g fresh mass. The vitamin C content of genotypes varied between 14.9 and 18.7mg/100ml. The major fatty acids in all mulberry fruits were linoleic acid (53.57-64.41%) and palmitic acid (11.36-16.41%). Antioxidant activity of black mulberry genotypes was found between 63% and 76%, which lower than standard BHA and BHT. Regarding organic acid content, malic acid was the most predominant with a range of 123-218mg/g followed by citric acid (21-41mg/g). The results of the study are helpful for attempting crop improvement in black mulberry for bringing to cultivation.
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