EFFECT OF MICROBIAL ACTIVITY AND ENVIRONMENTAL FACTOR ON ASCORBIC ACID CONTENTS OF STORED TOMATO IN PASSIVE EVAPORATIVE COOLING STRUCTURES
Journal Title: Academic Research International - Year 2012, Vol 3, Issue 3
Abstract
A study was conducted to study the effect of microbial activity and environmental factor on ascorbic acid contents of stored tomatoes in Passive Evaporative Cooling Structures. Three sets of four different types of passive evaporative cooling structures made of two different materials, clay and aluminium were constructed. One set consists of four separate cooling chambers. Two cooling chambers were made with aluminium container (round and rectangular shapes) and the other two were made of clay container (round and rectangulars). These four containers were separately inserted inside a bigger clays pot and laterite walls inter- spaced with clay soil of 5 cm(to form tin-in-pot, pot-in-pot, tin-in-wall and wall-in wall) with the outside structure wrapped with jute sack. The other two sets followed the same pattern with interspacing of 7 cm and 10 cm respectively. The set with 7 cm interspace served as the control in which the interspace soil and the jute sack were constantly wetted at intervals of between. 2 to 4 hours depending on the rate of evaporation with water at room temperature. The other two sets (5 cm and 10 cm interspaced soil) were constantly wetted with salt solution (Table salt (Nacl)) at the same interval to keep the soil in moist condition. In addition, the control has no fans and the inner cooling chambers were not lined with polyethylene nylon while the other two sets have fans and their inner cooling chambers lined with polyethylene nylon. Freshly harvested tomatoes were used for the experiment and the temperatures were monitored daily while the ascorbic acid contents were determined at interval of three days for a period of sixteen days. The average temperatures and relative humidity recorded for the tinin- pot in the 5 cm. 7 cm and 10 cm soil interspace are 27.38oC/88.33%, 27.10 oC /90.47% and 27.09 oC /91.49% respectively. The average temperatures and relative humidity recorded for the pot-in-pot in the 5 cm. 7 cm and 10 cm soil interspace are 27.39 oC /89.60%, 27.07 oC /92.27% and 27.05 oC /92.53% respectively. The average temperatures and relative humidity recorded for tin-in-wall in the 5 cm. 7 cm and 10 cm soil interspace are 27.94 oC /86.84%,
Authors and Affiliations
M. Sunmonu1, Ogbonnaya Chukwu2, A. Alabadan2, Z. Osunde2
Keywords
Related Articles
- EP ID EP130315
- DOI -
- Views 77
- Downloads 0
GETTING HIGHER EDUCATION: IS IT REALLY A CHALLENGE FOR FEMALES IN PAKISTAN?
The present study aimed to investigate the challenges, which girls had to face to overcome the cultural obstructions to get higher education. The study focused on the multitude of cultural barriers and challenges femal...
USING TRACING AND MODELING WITH A HANDWRITING WITHOUT TEARS® WORKSHEET TO INCREASE HANDWRITING LEGIBILITY FOR TWO PRESCHOOL STUDENTS WITH DEVELOPMENTAL DELAYS: A BRIEF REPORT
The purpose of this study was to increase the legibility of letter writing using tracing and copying procedures derived from the Handwriting Without Tears® (Olsen, 1998) program. Two preschool students with developme...
Sources of Stress and Coping Mechanisms among Under-Twenty High School Athletes: A Study Conducted at the Zimbabwe National Youth Games (Znyg) Manicaland 2013 Chapter.
The world today is replete with stressful situations whether at home or in away-from home situations. To live meaningful lives, people should learn to cope with the stress which has become part of everyday life. Without...
POLITICAL THOUGHT IN MEDIEVAL ISLAM: AN INTRODUCTORY OUTLINE: A BOOK-REVIEW
Rosenthal is a well known figure in academic circles. One of his famous works is Political Thought in the medieval Islam: An Introductory Outline. The key issues addressed in this book are the influence o...
POVERTY AND FAMILY PLANNING PRACTICES OF MARRIED WOMEN
The study examined the relationship between poverty and family planning practices of married women in Zone 5 Barracks of the Nigeria Police. The correlational research design was used. Volunteer sampling was used to se...