Ecology, Environment and Conservation Paper

Vol.17, Issue 4, 2011; Page No.(837-842)

STANDARDIZATION OF PRETREATMENT AND DRYING METHOD FOR WHITE ONION (ALLIUM CEPA LINN.)

K.K. Sangale, P.C. Haldavanekar, K.H. Pujari, P.C. Mali A.M.Tirmali and G.P. Sonune

Abstract

A laboratory investigation entitled Standardization of pretreatment and drying method for white onion (Allium cepa L.) was conducted at post harvest technology laboratory, Department of Horticulture, College of Agriculture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli during the year 2009-2010. It consisted of five pretreatments i.e. dipping in 2% alum solution, 2% salt solution, 0.25% KMS solution, 0.1% KMS+2 % CaCl2 solution and control (T5) with three drying methods, i.e. sun drying, oven drying and solar drying. Thus, in all fifteen treatment combinations replicated thrice in factorial randomized block design. Pretreated and dried white onion slices were stored in 400 guage polyethylene bag for 6 months at ambient temperature for further study in relation to chemical parameters, rehydration ratio and sensory evaluation. The chemical parameters under study significantly varied during storage with different pretreatments, drying methods and their interactions and decreasing trend was observed except reducing and total sugars. Among drying methods, solar drying noticed comparatively better retention of reducing and non-reducing sugars, protein and also rehydration ratio as well as sensory score. Oven dried samples showed better retention of T.S.S. and ash only. Among different pretreatments, 0.25%KMS and 0.1%KMS+2%CaCl2 were found comparatively better for retention of T.S.S., non-reducing and total sugars and ascorbic acid. The sensory score was comparatively more in 0.25%KMS and 0.1%KMS+2%CaCl2 pretreated samples. With regards to interaction effects 0.25 per cent KMS pretreated samples followed by solar drying showed better results in most of the chemical parameters including sensory score. Thus, the pretreatments 0.25 % KMS as well as 0.1 % KMS+2 % CaCl2 followed by solar drying were found to be suitable for dehydration of white onion.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 23, Issue 1, 2017
Vol 23, Feb 2017 Suppl. Issue
Vol 22, Dec 2016 Suppl. Issue
Vol 22, Issue 4, 2016
Vol 22, Sept. Suppl. Issue , 2016
Vol 22, Issue 3, 2016
Vol. 22, June Suppl. Issue 2016
Vol 22, Issue 2, 2016
Vol. 22, April Suppl. Issue 2016
Vol 22, Issue 1, 2016
Vol 21, Issue 4, 2015
Vol. 21 Dec. 2015 Suppl. Issue
Vol. 21 Nov. 2015 Suppl. Issue
Vol 21, Issue 3, 2015
Vol 21, Issue 2, 2015
Vol. 21 Suppl.Issue August 2015
Vol 21.Suppl.Issue June 2015
Vol 21, Issue 1, 2015
Supplement Issue, Dec. 2014
Special Issue-2014
Vol 20, Issue 4, 2014
Vol 20, Issue 3, 2014
Vol 20, Issue 2, 2014
Vol. 20 Issue 01, 2014
Vol. 19 Issue 04, 2013
Vol. 19 Issue 03, 2013
Vol. 19, Issue 02, 2013
Vol. 19, Issue 01, 2013
Vol.18, Issue 04, 2012
Vol.18, Issue 3, 2012
Vol.18, Issue 2, 2012
Vol.18, Issue 1, 2012
Vol.17, Issue 4, 2011
Vol.17, Issue 3, 2011
Vol.17, Issue 2, 2011
Vol.17, Issue 1, 2011
Vol.16, Issue 4, 2010
Vol.16, Issue 3, 2010
Vol.16, Issue 2, 2010
Vol.16, Issue 1, 2010
Vol.15, Issue 04, 2009
Vol.15, Issue 03, 2009
Vol.15, Issue 02, 2009
Vol.15, Issue 1, 2009
Vol.14, Issue 04, 2008
Vol.14, Issue 2-3, 2008
Vol.14, Issue 2-3, 2008
Vol.14, Issue 1, 2008
Vol.14, Issue 2-3, 2008
Vol.13, Issue 04, 2007
Vol.13, Issue 2, 2007
Vol.13, Issue 1, 2007
Vol.12, Issue 4, 2006
Vol.12, Issue 3, 2006
Vol.12, Issue 2, 2006
Vol.12, Issue 01, 2006
Vol.12, Issue 1, 2006
Vol.11, Issue 3,4, 2005
Vol.11, Issue 2, 2005
Vol.11, Issue 1, 2005
Vol.10, Issue 04, 2004
Vol.10, Issue 03, 2004
Vol.10, Issue 02, 2004
Vol.10, Issue 01, 2004
Vol.09, Issue 04, 2003
Vol.09, Issue 03, 2003
Vol.09, Issue 02, 2003
Vol.08, Issue 04, 2002
Vol.08, Issue 03, 2002
Vol.08, Issue 01, 2002
Vol.07, Issue 04, 2001
Vol.07, Issue 03, 2001
Vol.07, Issue 02, 2001
Vol.07, Issue 01, 2001
Vol.06, Issue 04, 2000
Vol.06, Issue 03, 2000
Vol.06, Issue 02, 2000
Vol.06, Issue 01, 2000
Vol.05, Issue 04, 1999
Vol.05, Issue 03, 1999
Vol.05, Issue 02, 1999
Vol.05, Issue 01, 1999
Vol.04, Issue 1,2, 1998
Vol.03, Issue 3,4, 1997
Vol.03, Issue 01, 1997
Vol.02, Issue 1,2, 1996
Vol.01, Issue 14, 1995
Looking for Past Issues? Click here to get them!!