Physicochemical quality of twin layer solar tunnel dried tomato slices.

Heliyon
Lelise Tilahun DuferaOliver Hensel

Abstract

The objective of this experimental study was to evaluate the effect of twin layer solar tunnel drying on physicochemical quality of tomato slices. The novelty of this dryer is that it has two layers of trays unlike Hohenheim solar tunnel dryer which makes it to have drying capacity of more than two times compare to type hohenheim solar tunnel dryer with equal collector area. The experiment consists of two (tray position and drying position) factors with two levels of tray position (upper tray (samples exposed to direct solar radiation) and lower tray (samples are exposed to only heated air)) and three levels of drying position (collector out let,middle of the dryer and dryer out let) with three replications. During the experiment 180 kg of Tomato slices of Galilea variety with 5mm thickness were dried in the twin layer solar tunnel dryer. Data on physicochemical quality of tomato were collected and analyzed using SAS (version 9.2). software. From the experimental result; an increase in lycopene and phenolic content retention along the length of the dryer was observed while Vitamin C retention showed a decreasing trend. Large retention of total phenol, lycopene and beta carotene content were observed for the lower tray dried tom...Continue Reading

References

May 2, 2002·Journal of Agricultural and Food Chemistry·Veronica DewantoRui Hai Liu
Aug 12, 2009·International Journal of Food Sciences and Nutrition·Dereje AshebirRalph Gretzmacher
Jan 1, 2010·Journal of Food Science and Technology·V R Sagar, P Suresh Kumar
Jan 16, 2014·Journal of Food Science and Technology·M TigistKebede Woldetsadik
Jan 16, 2014·Journal of Food Science and Technology·Manashi Das PurkayasthaCharu Lata Mahanta
Aug 9, 2016·Korean Journal for Food Science of Animal Resources·Hyeong Sang Kim, Koo Bok Chin
Nov 1, 2016·Comprehensive Reviews in Food Science and Food Safety·Siméon BourdouxMieke Uyttendaele

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Software Mentioned

Color Analyzer HTWG
SAS

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