Invasive Species Compendium

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Abstract

Fungal infection and its effect on stored sun-dried and kiln-dried copra.

Abstract

Moisture content and meat surface cleanliness of stored copra influenced the occurrence, growth and abundance of fungi. Aspergillus niger, A. oryzae, A. tamarii, A. flavus var. columnaris, Penicillium nigricans and P. bialoweinzense were found to infect sun-dried copra. Except for the absence of A. niger, the same species were found to infect the stored samples of kiln-dried copra. The presence of fungi on copra attracted insect pests which caused additional damage such as holes in the meat and accumulation of copra "dust". The colour of the oil obtained from infected sun-dried and kiln-dried copra was darker than that of oil obtained from un-infected copra. The drying method had no effect on the quantity of oil extracted before storage. Even after 3 months of storage, there was no significant difference in the quantity of oil extracted from infected and un-infected sun-dried and kiln-dried copra. Authors' summary. KEYWORDS: TROPAG | Cocos nucifera | Post harvest operations | copra | fungal diseases | Aspergillus | fungal diseases | Penicillium | moisture content | oil content | Philippines.