Date

4-2010

Degree

Bachelor of Science in Agricultural Engineering

Major Course

Major in Agricultural and Bio-Process Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Engelbert K. Peralta

Committee Member

Jessie C. Elauria, Edgardo Casas

Abstract

The study determined the effects of thickness on brown rice fissuring caused by moisture adsorption. Four rice varieties, PSB, Rc10, PSB Rc54, IR 60 and IR 64 were used and divided into two to three thickness fractions All samples were equilibrated to 11% relative humidity using Lithium Chloride. Static system of equilibration determined the EMC to minimize variations in moisture contents of the samples. The different fissuring rates of each thickness fraction were determined by soaking the grains in distilled water for 35 minutes. FiSsured grains were counted every 5 minutes for 35 minutes. The relationship between the numbers of fissured grains to the amount of time of submergence of the grains in the water is directly proportional. Thus, the longer the grains submerged in water the more fissures occurred in the kernels.The analysis of variance showed that the difference in thickness of rice varieties is highly significant at 95% confidence level.Furthermore, the thickness fractions within rice varieties showed that there are significant differences on the means of PSB Rc10, PSB Rc54 and IR 60. On the other hand, IR 64 showed that there is no significant difference between 5.5/64 and 6.0/65 thickness fractions. Results showed a decrease in fissured grains as the kernels become thinner. IR 60 with 5.5/64 thickness was the most resistant to fissure due to moisture adsorption while PSB Rc54 with 6.5/64 thickness was the most susceptible to fissure.

Language

English

LC Subject

Rice--Research--Philippines

Call Number

LG 993.5 2010 A2 D58

Document Type

Thesis

Download

Share

COinS