IJCRAR is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCRAR Articles.

INDEXED IN INDEX COPERNICUS - ICI Journals Master List 2016 - IJCRAR--ICV 2016: 81.15 For more details click here

Abstract                 Volume:9  Issue-4  Year-2021          Original Research Articles


Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcret@gmail.com

Control of enzymatic browning of aerial yam (Dioscorea bulbifera) cultivated in Côte d’Ivoire by six fruit juices
Jocelyn Constant Yapi1*,  Brice N’cho Ayekoue2,  Jean Bedel Fagbohoun1,  Sophie Nadège Gnangui2 and Lucien Patrice Kouame2
1Department of Biochemistry and Microbiology, Agroforestry unit, University Lorougnon Guede, BP 150 Daloa,Côte d’Ivoire
2Laboratoire de Biocatalyse et des Bioprocédés de l’Université Nangui Abrogoua (Abidjan, Côte d'Ivoire), 02 BP 801 Abidjan 02, Côte d'Ivoire
*Corresponding author
Abstract:

The inhibitory effect of six fruit juices on polyphenol oxidase (PPO)and enzymatic browning of aerial yam (Dioscorea bulbifera) was investigated in order to evaluate the influence of these fruit juices on polyphenoloxidase activity, in a total purified preparation of aerial yam (Dioscorea bulbifera). All the six fruit juices used are inhibitors of the Dioscorea bulbifera yam polyphenol oxidase activity. At volumes of 400 µl fruit juices the activity of polyphenoloxidase was, totally inhibited. Ki values of 0.087, 0.163, 0.554, 1.077, 1.085 and 1.507 were found for the juices of papaw, orange, tangerine, grenadillo, lemon and grapefruit, respectively. The Ki values showed that papaw juice was the most effective inhibitor. The type inhibition was determined for each fruit. A competitive-type inhibition was obtained with all fruit juices used.

Keywords: Enzymatic browning; polyphénoloxidase; Dioscorea bulbifera; fruit juices; inhibition, control.
Download this article as Download

How to cite this article:

Jocelyn Constant Yapi, Brice N’cho Ayekoue, Jean Bedel Fagbohoun, Sophie Nadège Gnangui and Lucien Patrice Kouame. 2021. Control of enzymatic browning of aerial yam (Dioscorea bulbifera) cultivated in Côte d’Ivoire by six fruit juices.Int.J.Curr.Res.Aca.Rev. 9(4): 80-90
doi: https://doi.org/10.20546/ijcrar.2021.904.009