Widodo, Soesiladi E and Zulferiyenni, None (2013) COATING EFFECTS OF CHITOSAN AND PLASTIC WRAPPING ON THE SHELF-LIFE AND QUALITIES OF ‘MUTIARA’ AND ‘CRYSTAL’ GUAVAS. Journal of ISSAAS, 19 (1). pp. 1-7. ISSN 0859-3132

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Abstract

Fruits of two guava cultivars namely ‘Mutiara’ and ‘Crystal’ are economically impotant and freshly sold in Indonesian markets. Both are usually sold in a one-layer plastic wrapping. As an alternative coating material of both biodegradable and having a fungicide effect, chitosan is increasingly popular and potential to be applied to the guavas to replace the one-plastic wrapping. The objectives of this research were (1) to study the effects of chitosan and plastic wrapping and (2) to find the best treatment of the two coatings on prolonging the shelf-life and maintaning the fruit qualities of ‘Mutiara’ and ‘Crystal’ guavas. A completely randomized design was used with five treatments of a control (uncoated), chitosan concentrations of 2.5, 4.0, 5.5%, and one-layer coating of plastic wrapping. The results showed that the fruit coatings significantly increased the shelf-life and maintained the qualities of ‘Mutiara’ and ‘Crystal’ guavas compared to the uncoated, and that the chitosan and plastic wrapping had the same effects on increasing the shelf-life of the guava cultivars by 7-8 days longer compared to the uncoated. However, the chitosan caused greater weight loses than the plastic wrapping, and the guava cultivars responded differently to the coatings. The chitosan increased significantly the shelf-life of ‘Mutiara’, with the best treatment of 2.5% chitosan, whereas the plastic wrapping increased significantly the shelf-life of ‘Crystal’

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian (FP) > Prodi Agronomi dan Hortikultura
Depositing User:	PROF. DR. SOESILADI E. WIDODO
Date Deposited:	22 Aug 2016 09:02
Last Modified:	22 Aug 2016 09:02
URI:	http://repository.lppm.unila.ac.id/id/eprint/389

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