Differences in the physical and chemical characteristics of guavas Vietnamese and Beaumont related to processing

Salmah Yusof, . and Hashimah Hashim, . (1991) Differences in the physical and chemical characteristics of guavas Vietnamese and Beaumont related to processing. [Proceedings Paper]

The physical and chemical characteristics of the Vietnamese and Beaumont guavas were compared. There was no significant difference in the pH of the two fruit varieties. The total soluble solids content of the Vietnamese fruit decreased upon fruit ripening from 8.6 degrees - 6.4 degrees B while the Beaumont maintained the value above 9 degrees B. The titratable acidity value in the Vietnamese did not decrease while in Beaumont it decreased from 0.55 to 0.37. The yield of pectin was highest at stage 4 for both varieties 14.6 percent and 17.0 percent for Vietnamese and Beaumont respectively. Results on pectin characterisation showed that the Vietnamese pectin is of higher equivalent weight and percent methoxyl content compared to the Beaumont at all stages of maturity. The pulp:seed ratio indicates that the Vietnamese fruit gives a better recovery

Full text available from:

Abstract

The physical and chemical characteristics of the Vietnamese and Beaumont guavas were compared. There was no significant difference in the pH of the two fruit varieties. The total soluble solids content of the Vietnamese fruit decreased upon fruit ripening from 8.6 degrees - 6.4 degrees B while the Beaumont maintained the value above 9 degrees B. The titratable acidity value in the Vietnamese did not decrease while in Beaumont it decreased from 0.55 to 0.37. The yield of pectin was highest at stage 4 for both varieties 14.6 percent and 17.0 percent for Vietnamese and Beaumont respectively. Results on pectin characterisation showed that the Vietnamese pectin is of higher equivalent weight and percent methoxyl content compared to the Beaumont at all stages of maturity. The pulp:seed ratio indicates that the Vietnamese fruit gives a better recovery

[error in script]

Item Type:	Proceedings Paper
Additional Information:	5 fig.; 8 ref.; Summary En
AGROVOC Term:	GUAYABA
AGROVOC Term:	PROPIEDADES FISICO-QUIMICAS
AGROVOC Term:	TECNOLOGIA POSTCOSECHA
AGROVOC Term:	FISIOLOGIA POSTCOSECHA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/14928

Actions (login required)

View Item