บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

The effect of extracts of some Nigerian spices on biodeterioration of Okra (Abelmoschus (L) Moench) by fungi.

Ejechi, B. O., Ojeata, A. and Oyeleke, S. B.

Journal of Phytopathology Year: 1997 Vol: 145 Issue: 11/12 Pages: 469-472 Ref: 16 ref.

1997

บทคัดย่อ

The effect of extracts of some Nigerian spices on biodeterioration of Okro (Abelmoschus (L) Moench) by fungi.

Aqueous and ethanol extracts of 5 Nigerian spices (Allium sativum [garlic], Zingiber officinale, Aframomum melegueta, Xylopia aethiopica and Monodora myristica) inhibited the growth of fungi (Botryodiplodia theobromae, Aspergillus niger, Aspergillus flavus, Mucor sp., Rhizopus stolonifer, Penicillium sp. and Fusarium sp.) isolated from deteriorating okra on agar plates, with an average minimum inhibitory concentration of 6.0% (v/v). A marked reduction in weight loss of the challenged extract-impregnated okra fruit was observed with A. sativum and Z. officinale. Reduction in okra carbohydrate was inhibited most by Z. officinale, while X. aethiopica limited the loss of protein the most. Changes in pH and titratable acidity of challenged okra was inhibited best by A. sativum, Z. officinale and A. melegueta while in all cases, M. myristica showed the least ability to reduce biodeterioration. Of the treatments applied, the combination of mild heat and mixtures of aqueous Z. officinale and A. meleguet

a extracts markedly reduced biodeterioration of fresh okra as indicated by the small loss of carbohydrate (1.2%) after 3 months of storage. It is concluded that spices may be economically important in the application of hurdle technology for the preservation of fruit.