Nurdjanah, Siti (2018) Chlorophyll , ascorbic acid and total phenolic contents of sweet potato leaves as affected by minimum postharvest handling treatment. In: International Conference on Biomass 2018 "Accelerating the Technical Development and Commercialization for Sustainable Bio-based Product and Energy, 1-2 Agustus 2018, Bogor. (Submitted)

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Abstract

There is a wide variety of native vegetables utilized by rural people in developing countries; however, information about their chemical content primarily that have functional properties and their degradation during handling is scarce and not well quantified. One example of those native leafy dark-green vegetables are sweet potato tips. Therefore, the objective of this research was to investigate the effect of minimum handling on some qualities of sweet potato tips. The two factors experiment was arranged in a completely randomized design with 4 replications. The first factor was dipping solution: Water or solution containing sucrose and citric acid. The second factor was basal stem cutting or no cutting. All the leaves were hold for 5 days at 30 ± 5℃, and then analyzed for their chlorophyll, ascorbic acids, and phenolic contents. The results showed holding solution of 1.5% sucrose and 300 ppm citric acid helped to reduced chlorophyll degradation of sweet potato tips. However, this treatment induced a higher degradation of ascorbic acid. Daily changing pulsing and daily basal stem cutting did not affect chlorophyll , but helped to maintain ascorbic acid and induced higher phenolic content of the tips

Item Type: Conference or Workshop Item (Paper)
Subjects: S Agriculture > S Agriculture (General)
Depositing User: Siti Nurdjanah
Date Deposited: 12 Nov 2018 01:15
Last Modified: 12 Nov 2018 01:15
URI: http://repository.lppm.unila.ac.id/id/eprint/9719

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