https://doi.org/10.4081/ijfs.2018.6846

Effects of moringa leaves (Moringa oleifera) extraction on quality changes and melanosis of giant freshwater prawn (Macrobrachium rosenbergii) during chilled storage

Vol. 7 No. 3 (2018)
Submitted: 11 June 2017
Accepted: 6 June 2018
Published: 26 September 2018
Edible coats, quality, melanosis, Giant freshwater prawn
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Authors

Nurul U. Karim
ulfah@umt.edu.my
School of Fisheries and Aquaculture Sciences, and Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Malaysia.
Uzmaa S.A.A. Siddiq
School of Food Science and Technology, Universiti Malaysia Terengganu, Malaysia.
Mohd R.M. Razak
School of Food Science and Technology, Universiti Malaysia Terengganu, Malaysia.
Mohamad K.M. Zainol
Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Malaysia.
Mohd I. Abdullah
Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, Malaysia.
An aqueous extraction of moringa (Moringa oleifera) leaves were prepared as the edible coats for keeping the quality of the giant freshwater prawn (Macrobrachium rosenbergii). In addition, the antioxidant properties and activity; total phenolic content (TPC), total flavonoid contents (TFC), free radical scavenging activity (DPPH), and ferric reducing antioxidant power (FRAP) of moringa leaves were also determined. The phenolic compounds and antioxidant properties in the moringa leaves are low; 16.14 mgGAEg-1 for TPC; 5.57 mgQEg-1 for TFC; 1.36 mgTEg-1 for DPPH; and 3.05 mgTEg-1 for FRAP. The experiment was further conducted by coating the M. rosenbergii with moringa leaves extraction before chilled storage at 4°C for 15 days. Moringa leaves extraction were effectively reduced the microflora count in M. rosenbergii (P<0.05). Total volatile basis nitrogen (TVB-N) value showed a significant (P<0.05) lower amount in treated samples compared to the controls. Melanosis were obvious in controls compared to the treated samples. After 15 days of chilled storage, the sensory properties; taste, texture and odour of treated samples were acceptable by the panelists. Biopreservation of moringa leaves extraction significantly benefits in keeping the quality of M. rosenbergii.

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How to Cite

1.
Karim NU, Siddiq US, Razak MR, Zainol MK, Abdullah MI. Effects of moringa leaves (Moringa oleifera) extraction on quality changes and melanosis of giant freshwater prawn (Macrobrachium rosenbergii) during chilled storage. Ital J Food Safety [Internet]. 2018 Sep. 26 [cited 2024 Nov. 24];7(3). Available from: https://www.pagepressjournals.org/ijfs/article/view/6846

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