Citation
Azizah Osman, . and Chiew B. W., . and Hasanah Mohd Ghazali, . (1996) Effect of various postharvest treatments on several physico-chemical properties of guava Psidium guajava L. [Proceedings Paper]
Abstract
Guava fruits Psidium guajava L. of Kampuchea variety were obtained from a commercial farm near Bangi Selangor. Fruits of commercial maturity were then subjected to three different postharvest treatments namely hydrocooling 0-3C in ice water for 12 hours chilling injury 3IC; 65-85 RH for 24 hours and mechanical injury dropping the fruits from a height of 1. 5 meter. Untreated fruits kept at ambient temperature 27 1C; 60-80 RH were used as control. Properties like polygalacturonase PG activity total soluble solids and titratable acidity increased progressively with days of storage for the control and the mechanical injured fruits. The increase in the PG activity was slower in the hydrocooled and chill injured fruits. However texture and pH decreased with storage time. Changes in all the parameters studied were significant between the mechanically injured fruits and fruits of the other treatments.
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Abstract
Guava fruits Psidium guajava L. of Kampuchea variety were obtained from a commercial farm near Bangi Selangor. Fruits of commercial maturity were then subjected to three different postharvest treatments namely hydrocooling 0-3C in ice water for 12 hours chilling injury 3IC; 65-85 RH for 24 hours and mechanical injury dropping the fruits from a height of 1. 5 meter. Untreated fruits kept at ambient temperature 27 1C; 60-80 RH were used as control. Properties like polygalacturonase PG activity total soluble solids and titratable acidity increased progressively with days of storage for the control and the mechanical injured fruits. The increase in the PG activity was slower in the hydrocooled and chill injured fruits. However texture and pH decreased with storage time. Changes in all the parameters studied were significant between the mechanically injured fruits and fruits of the other treatments.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal SB 359 I61 1996 Vol. 1 Call Number |
| AGROVOC Term: | Psidium guajava |
| AGROVOC Term: | Guavas |
| AGROVOC Term: | Postharvest treatment |
| AGROVOC Term: | Physicochemical properties |
| AGROVOC Term: | Commercial farming |
| AGROVOC Term: | Chilling |
| AGROVOC Term: | Ambient conditions |
| AGROVOC Term: | Polygalac |
| AGROVOC Term: | Hardness |
| AGROVOC Term: | Relative humidity |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/11939 |
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