Publication: Drying characteristics of Red Seaweed (Eucheuma strata ata) at varying levels of temperature
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2010-03
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Don Mariano Marcos Memorial State University - North La Union Campus
Abstract
The study with the general objective to find the optimum level of temperature for drying eucheuma was conducted at the Processing Center of the Agricultural Engineering Department, DMMMSU-NLUC, Bacnotan, La Union. Specifically, the following were determined: 1) drying characteristics of dried eucheuma before, during and after drying and, 2) level of temperature that can maintain the color characteristics of dried eucheuma. The eucheuma samples were dried using the multi-purpose dryer during the period of July 01, 2010 to August 17, 2010. Three sizes of eucheuma: shredded, chopped and
whole sizes were subjected to different levels of temperature (65°C-105°C). The same sizes were dried under the sun for 180 minutes.
The data gathered included weight before and after drying and the color differences between drying intervals were statistically analyzed using RCBD factorial.
It was observed that as the drying time increased, the weight reduction decreased. Sundrying consistently had the highest weight which was significantly different from the other treatments in all duration of drying. Drying eucheuma at 65°C and 75°C for 120 minutes obtained the same dried weight at 150 minutes and 180 minutes.
On the other hand, drying eucheuma at 85°C and 95°C obtained comparable dry weight at 90 minutes, 120 minutes, 150 minutes and 180 minutes. Eucheuma dried at 105°C obtained comparable dry weight at 60 minutes, 90 minutes, 120 minutes, 150 minutes and 180 minutes.
Shredded Eucheuma had the highest dried weight which was significantly different if dried in chopped or whole forms in all durations of drying. Furthermore, the weight decreased as the duration of drying increased in all forms.
Drying eucheuma at 105°C obtained the highest rating of 3.95 in terms of color with descriptive equivalent of high that was comparable to the color of drying eucheumaat 85°C. Sundrying eucheuma had the lowest rating.
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Sung-ag, D. S. (2010). Drying characteristics of Red Seaweed (Eucheuma strata ata) at varying levels of temperature. [Unpublished Undergraduate Thesis Don Mariano Marcos Memorial State University - North La Union Campus, Sapilang, Bacnotan, La Union. Lakasa ti Sirib, DMMMSU Institutional Repository.