A parametric study on the effect of stalk submersion on juice extraction using a 6-roller sorghum mill

Date

2013

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

A horizontal 6-roller mill specifically designed for sweet sorghum juice extraction with a one ton/hr capacity was used to determine the correlation between volume and brix of juice collected using the SPV 422 variety of sweet sorghum. Parameters tested include varying the number of passes (1, 2, 3, and 4), duration of stalk submersion (5, 10, and 15 minutes), stalk submersion temperature(60,65, and 70ºC), and sequencing of stalk submersion. Stripping and classification of stalks based on average stalk diameter were done prior to milling. Treatments with and without stalk submersion were employed. Result showed that when varying the number of passes without stalk submersion, a strong negative correlation between juice volume and brix exists. Moreover, juice volume and brix from treatment without stalk submersion were significantly different from that with stalk submersion. However, varying the duration for submersion and submersion temperature did not have any significant difference in volume and brix of juice since the bagasse had a maximum capacity for absorbing water. Based from the comparison in sequencing for submersion, it was shown that stalk submersion for the first pass did not have any significantly effect in juice volume and brix as compared when stalk submersion was done for both second and third passes.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2013 E62 /B47

Document Type

Thesis

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