Direct electrochemical measuring technique for estimation of the ascorbic acid (AA) content of freshly cut yellow pepper fruits without special sample treatment was worked out. Dialysis membrane modified glassy carbon electrode combined with short time chronoamperometric measuring method was employed to eliminate the interfering effect of tortuosity and electrode fouling. Viscosity change inside the diffusion layer was taken in account. AA content of the fruit was found to be 114.5mg/100g, and it is shown that the metal ions derived from iron blade are able to accelerate the oxidation process significantly. Classical iodometric titration was applied as a reference method.
机构:
Wageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Indonesian Inst Sci, Biotechnol Res Ctr, Bogor 16910, IndonesiaWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Wahyuni, Yuni
Ballester, Ana-Rosa
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Plant Res Int, NL-6700 AA Wageningen, NetherlandsWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Ballester, Ana-Rosa
Sudarmonowati, Enny
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Indonesian Inst Sci, Biotechnol Res Ctr, Bogor 16910, IndonesiaWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Sudarmonowati, Enny
Bino, Raoul J.
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Wageningen Univ, Lab Plant Physiol, NL-6700 AR Wageningen, NetherlandsWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Bino, Raoul J.
Bovy, Arnaud G.
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Wageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Plant Res Int, NL-6700 AA Wageningen, NetherlandsWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
机构:
Wageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Indonesian Inst Sci, Biotechnol Res Ctr, Bogor 16910, IndonesiaWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Wahyuni, Yuni
Ballester, Ana-Rosa
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机构:
Plant Res Int, NL-6700 AA Wageningen, NetherlandsWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Ballester, Ana-Rosa
Sudarmonowati, Enny
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机构:
Indonesian Inst Sci, Biotechnol Res Ctr, Bogor 16910, IndonesiaWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Sudarmonowati, Enny
Bino, Raoul J.
论文数: 0引用数: 0
h-index: 0
机构:
Wageningen Univ, Lab Plant Physiol, NL-6700 AR Wageningen, NetherlandsWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Bino, Raoul J.
Bovy, Arnaud G.
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机构:
Wageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands
Plant Res Int, NL-6700 AA Wageningen, NetherlandsWageningen UR Plant Breeding, NL-6708 PB Wageningen, Netherlands