Proximate analysis mineral content and antioxidant capacity of milk apple malay apple and water apple

Rabeta M. S., . and Lim A. S. L., . Proximate analysis mineral content and antioxidant capacity of milk apple malay apple and water apple. pp. 673-679. ISSN 22317546

The aim of this study is to determine the antioxidant capacity of underutilized fruits in Malaysia namely Milk apple (Syzygium malaccense) Malay apple (Syzygium malaccense (L.) Merr. and Perry) and Water apple (Syzygium aqueum). Synthetic antioxidants (BHA and BHT) commonly used in the food industries may not be as safe as it was presumed earlier. As BHA and BHT may be carcinogenic it is important to look for new sources of natural antioxidants from fruits and vegetables. Freeze dried samples extracted with acetone and water were measured by ferric 1 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and Ferric Reducing Antioxidant Power (FRAP) assays. Acetone extract (50) showed higher values for both DPPH and FRAP assays compared with water extract. Milk apple has the highest DPPH value of 95.26 inhibition of DPPH. Milk apple also showed the highest FRAP value with 8722.22 M of Fe (II) per gram of freeze dried sample. There was a significant difference (P 0.05) in the types of extraction used. Antioxidant capacities of the samples are in the following order: Milk apple Malay apple Water apple. Proximate compositions and mineral contents of the samples were determined too. The samples can be used as a source of natural antioxidants.

Full text available from: Official URL: http://ifrj.upm.edu.my/20%20(02)%202013/24%20IFRJ%...

Abstract

The aim of this study is to determine the antioxidant capacity of underutilized fruits in Malaysia namely Milk apple (Syzygium malaccense) Malay apple (Syzygium malaccense (L.) Merr. and Perry) and Water apple (Syzygium aqueum). Synthetic antioxidants (BHA and BHT) commonly used in the food industries may not be as safe as it was presumed earlier. As BHA and BHT may be carcinogenic it is important to look for new sources of natural antioxidants from fruits and vegetables. Freeze dried samples extracted with acetone and water were measured by ferric 1 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and Ferric Reducing Antioxidant Power (FRAP) assays. Acetone extract (50) showed higher values for both DPPH and FRAP assays compared with water extract. Milk apple has the highest DPPH value of 95.26 inhibition of DPPH. Milk apple also showed the highest FRAP value with 8722.22 M of Fe (II) per gram of freeze dried sample. There was a significant difference (P 0.05) in the types of extraction used. Antioxidant capacities of the samples are in the following order: Milk apple Malay apple Water apple. Proximate compositions and mineral contents of the samples were determined too. The samples can be used as a source of natural antioxidants.

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Item Type:	Article
AGROVOC Term:	Antioxidants
AGROVOC Term:	Acetone
AGROVOC Term:	Syzygium aqueum
AGROVOC Term:	Syzygium malaccensis
AGROVOC Term:	Malay apple
AGROVOC Term:	Apples
Geographical Term:	Malaysia
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	26 Apr 2025 15:32
URI:	http://webagris.upm.edu.my/id/eprint/21782

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