title: Antioxidant Efficacy of Litchi (Litchi chinensis Sonn.) Pericarp Extract in Sheep Meat Nuggets.
abstract: In the present study, the efficacy of litchi fruit pericarp (LFP) extract (0.5%, 1.0% and 1.5% concentration) in retarding lipid oxidation of cooked sheep meat nuggets was evaluated and compared to butylated hydroxyl toluene (BHT, 100 ppm). The total phenolic content and antioxidant potential of LFP extracts were determined. The thiobarbituric acid reactive substance (TBARS) values were evaluated to assess the potential of LFP extracts as natural antioxidants for oxidative stability of cooked nuggets during 12 days of refrigerated storage. Results show that total phenolics content in 10 mg LFP powder was comparable to 100 ppm BHT, but 15 mg LFP powder had significantly higher (p < 0.05) total phenolics content and reducing power than the synthetic antioxidant. LFP extract did not affect pH, cooking yield and the sensory attributes of cooked nuggets. Non-treated control and nuggets with 1.0% LFP extract had significantly lower total phenolics than nuggets with 1.5% extract and BHT. TBARS values were significantly lower (p < 0.05) throughout the storage period in cooked meat nuggets containing either LFP extract or BHT than in non-treated control. Results indicate that LFP extracts are promising sources of natural antioxidants and can potentially be used as functional food additives in meat products at 1.5% without affecting products' acceptability.
authors.affiliation: ICAR-Indian Veterinary Research Institute, Eastern Regional Station, Kolkata 700 037, India. arun.das@icar.gov.in.
authors.forename: Arun K
authors.initials: AK
authors.lastname: Das
authors.affiliation: ICAR-Central Institute for Research on Goats, Farah, Mathura 281 122, India. vrvet@rediffmail.com.
authors.forename: Vincent
authors.initials: V
authors.lastname: Rajkumar
authors.affiliation: ICAR-Indian Veterinary Research Institute, Eastern Regional Station, Kolkata 700 037, India. npk700@gmail.com.
authors.forename: Pramod K
authors.initials: PK
authors.lastname: Nanda
authors.affiliation: ICAR-Indian Veterinary Research Institute, Eastern Regional Station, Kolkata 700 037, India. dr.pranav.chauhan@gmail.com.
authors.forename: Pranav
authors.initials: P
authors.lastname: Chauhan
authors.affiliation: Department of Livestock Products Technology, West Bengal University of Animal and Fishery Sciences, Kolkata 700 037, India. soubhagyaovc@gmail.com.
authors.forename: Soubhagya R
authors.initials: SR
authors.lastname: Pradhan
authors.affiliation: Department of Livestock Products Technology, West Bengal University of Animal and Fishery Sciences, Kolkata 700 037, India. lptsubhasish@gmail.com.
authors.forename: Subhasish
authors.initials: S
authors.lastname: Biswas
keywords: antioxidant; lipid oxidation; litchi fruit; meat nuggets; pericarp extract; total phenolics