Teknis
Vol 10, No 1 (2015): TEKNIS, April 2015

Model Lapis Tipis Pengeringan Menggunakan Metode Pengering Rak

UNDIP-Semarang), Suryanto (Jurusan Teknik Mesin, POLINES-Semarang), Kristinah Haryani, Suherman (Jur (Unknown)



Article Info

Publish Date
05 May 2015

Abstract

Ginger (Zingiber officinale Rosc.) is one of the agricultural commodities such as spice plants that have high economic value. Drying ginger is one way to improve the product quality with a lower moisture content materials. This research was carried out by using a tray dryer with drying temperature are 40oC, 50oC and 60oC. The type of the dried ginger are red ginger, small ginger and big ginger. Sample is peeled before and cut to produce a thickness of sample 1,5cm, 1 cm and 0,5cm. After drying for 4hours, that known the drying rate increases with an increase in drying temperature. Drying rateis also influenced by the surface area of the sample ginger. The best drying rate obtained from ginger samples with a thickness of 0,5 cm. Three thin-layer drying models are used to compare the rate of moisture rate modeling with moisture rate experiments. Pag emodel is a model of a thin layer which can prove that the moisture rate modelling and moisture rate experiment has the best statistical correlation. Drying will cause a change in color, texture and shape of the sample. Ginger drying using tray dryer, the sample sizes hould be minimize and dried at 60oC.Keywords: Ginger Rhizome, Drying, Tray Dryer, Thin Layer Drying.

Copyrights © 2015






Journal Info

Abbrev

TEKNIS

Publisher

Subject

Engineering

Description

TEKNIS merupakan singkatan dari Teknologi, Sains, dan Ekonomi Bisnis, dengan demikian Jurnal Teknis mempunyai cakupan pembahasan di bidang tersebut. Jurnal Teknis ISSN 1907-4379 diterbitkan sejak tahun 2006 oleh Unit Penelitian dan Pengabdian kepada Masyarakat (UP2M) Politeknik Negeri Semarang ...