Malays. Appl. Biol. (2017) 46(3): 41–49

ANTIOXIDATIVE PROPERTIES OF SELECTED MICROENCAPSULATED

PLANTS POWDER PREPARED USING

ULTRASONIC SPRAY-DRYING TECHNIQUE

MOHAMAD KHAIRI ZAINOL^1*, LEW HEW WERN¹, NUR IZZATI BINTI MOHD FAUZI¹,

NG KHAI SHIN¹, NURHAKIMAH RAZMAN¹, NUR FAZILA KADIMI¹, AMIR IZZWAN ZAMRI¹,

ZAMZAHAILA MOHD ZIN^1,2, FISAL AHMAD¹, TUAN ZAINAZOR TUAN CHILEK

and HASMADI MAMAT³

¹School of Food Science and Technology, Universiti Malaysia Terengganu,

21030, Kuala Nerus, Terengganu

²Centre for Fundamental and Liberal Education, Universiti Malaysia Terengganu,

21030, Kuala Nerus, Terengganu

³School of Food Science and Nutrition, Universiti Malaysia Sabah,

88400 Kota Kinabalu, Sabah, Malaysia

^*Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Accepted 21 August 2017, Published online 4 October 2017

 

ABSTRACT

Ultrasonic spray drier technology has been practice because of its numerous advantages, including providing more uniform droplets and reducing bioactive compounds damages. This study was aimed to measure the antioxidant properties of several microencapsulated plants powder (MPP) prepared using ultrasonic spray dying technique. The plant samples were treated using ultrasonic spray drier at 80°C inlet temperatures and 10% of gum Arabic relative to solid content. The collected MPP were analysed for their antioxidant activities. The plants use in this study were C. ternatea, M. indica, S. rebaudiana, P. macrocarpa, K. salvarezii and R. apiculata, All MPP showed somewhat very promising high antioxidative activities with C. ternatea significantly exhibited the highest (P<0.05) antioxidant power in nearly all antioxidative test analysis performed. On the other hand, M. indica showed the least ability in antioxidant power and the content of bioactive compounds. Results of the study point that the production of MPP and microcapsules is feasible as a functional ingredient in food industry as it can retain the antioxidative properties, which could lead to a more sustainable usage of natural resources.

Key words: Ultrasonic spray drying, antioxidative activities, microencapsulated plants powder (MPP)