Normal view MARC view ISBD view

Effects of drying methods on the antioxidant activities on Benincasa Hispida seed extracts / Nurhamizah Ibrahim

By:

Nurhamizah Ibrahim

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2013Description: vii, 57 p. : ill. ; 30 cm. + 1 CD-ROMISBN:

THE0004208(Local)

Subject(s):

Dissertation note: Project paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang – 2013 Abstract: The present study investigated the changes in total phenolic content (TPC) and antioxidant capacity of B.hispida seeds after three drying treatment (sun drying, oven drying and freeze drying) compared to fresh samples by DPPH radical scavenging method and total phenolic content. Ethanol is used as the solvent for extraction because ethanol can obtain the highest antioxidant activity due to its highest polarity. The analysis was conducted in University Malaysia Pahang laboratory using the ultraviolet-visible spectrophotometry. The results of this study showed that the water content, antioxidant activity and total phenolic content which are highest from B.hispida seeds were obtained by freeze drying. Sun drying was the worst in antioxidant capacity and phenolic content because the value obtained are less compared other methods. Overall, B. hispida may have high potential applications in the medical and food industries.

Tags from this library: No tags from this library for this title. Log in to add tags.

Average rating: 0.0 (0 votes)

Holdings ( 2 )
Title notes ( 3 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG	TP159.A5 H36 2013 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000074727
Final Year Report	UMPLIB GAMBANG	CD 7063 \| TP159.A5 H36 2013 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000074728

Project paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang – 2013

Bibliography : p. 47-49

The present study investigated the changes in total phenolic content (TPC) and antioxidant capacity of B.hispida seeds after three drying treatment (sun drying, oven drying and freeze drying) compared to fresh samples by DPPH radical scavenging method and total phenolic content. Ethanol is used as the solvent for extraction because ethanol can obtain the highest antioxidant activity due to its highest polarity. The analysis was conducted in University Malaysia Pahang laboratory using the ultraviolet-visible spectrophotometry. The results of this study showed that the water content, antioxidant activity and total phenolic content which are highest from B.hispida seeds were obtained by freeze drying. Sun drying was the worst in antioxidant capacity and phenolic content because the value obtained are less compared other methods. Overall, B. hispida may have high potential applications in the medical and food industries.