Source-dependent compositional changes in coconut flavoured liquid smoke and its application in traditional Indian smoked fishery products
Source-dependent compositional changes in coconut flavoured liquid smoke and its application in traditional Indian smoked fishery products
Date
2020
Authors
C.T, Nithin
Chatterjeea, Niladri Sekhar
C.G., Joshy
R., Yathavamoorthi
T.R, Ananthanarayanan
Mathew, Suseela
J., Bindu
T.K., Srinivasa Gopal
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis
Abstract
Smoking is an age-old food preservation method. Intense smoking results in deposition of carcinogenic
polycyclic aromatic hydrocarbons (PAH) in food. Replacing traditional smoking practices with application
of liquid smoke or smoke flavouring is proven to reduce the PAH content without adversely
affecting flavour of the products. This study explores source-dependant variations in composition of
a coconut-flavoured liquid smoke. Liquid smoke produced from coconut husk (CH), coconut fibre (CF)
and coconut fibre powder (CP) was analysed for total phenolic content, total carbonyls, titratable acidity,
pH and PAH content. Resultant liquid smokes were also compared a commercial liquid smoke (CL) for
composition. Total phenolic content in the liquid smokes ranged from 1518 ± 184 (CH), 1037 ± 110 (CF),
834 ± 48.23(CP) and 20047 ± 193 mg L−1 (CL). Commercial liquid smoke showed highest total PAH
content 215 ± 15.45 ng ml−1 followed by 8.23 ± 1.47 (CP), 7.22 ± 1.44 (CF) and 0.64 ± 0.13 ng m−1 (CH).
Further, process parameters for producing ‘masmin’ – a popular traditional smoked and dried ready-toeat
product – by replacing traditional smoking practices with liquid smoking were standardised using
Response Surface Methodology. Spraying cooked skipjack tuna (Katsuwonus pelamis) loins with coconut
husk liquid smoke containing 4% salt for 155 min at flow rate of 3 L hr−1 and chamber temperature of
60°C was found to give the product a matching flavour with traditional masmin.
Description
Keywords
Seafood, food smoking, masmin, liquid smoking