Transport Phenomena

EFFECT DRYING METHOD on DRYING RATE and CARRAGEENAN QUALITY from Eucheuma cottonii SEAWEED


Oleh :

Fadilah(1), Sperisa Distantina(1), Dhian Budi Pratiwi(1), Rahmah Muliapakarti(1),
YC. Danarto(1), Wiratni(2), Moh. Fahrurrozi(2)
1.) Program Studi Teknik Kimia FT Universitas Sebelas Maret, Surakarta.
Jl. Ir. Sutami 36 a Surakarta 57126.
2.) Jurusan Teknik Kimia FT Universitas Gadjah Mada, Yogyakarta.
Jl. Grafika UGM Yogyakarta 55281.
fadil_am@uns.ac.id

Abstract

Carrageenan represent one of the major texturising ingredients in the food industry. Operation condition in every seaweed processing step effects on yield and gelling properties of carrageenan from Eucheuma cottonii seaweed, largely sourced from Indonesia. The properties differ from batch to batch. Therefore, the quantitative analysis of carrageenan batches is important. The aim of this research is to study the effect of drying method (oven, spray dryer and microwave dryer) on drying rate and the gel quality (gel strength, melting and gelling temperature). In this research, the 25 g seaweeds were soaked in aqueous alkali (NaOH 0.2 N) over night. After being neutralized, the seaweeds were extracted with 750 mL hot water of 80oC for 30 minutes. The constant volume of water was maintained by adding hot water every time. The filtrate were concentrated till its half and then dried. Based on experimental data, the results demonstrated that rate of drying using oven method is faster than microwave method. The highest value of gel strength could be obtained by oven method and while the poorest one could be obtained by spray drier. Using lower temperature in drying will produce carrageeenan with higher gel strength.

Lanjut Baca>>

About barifbrave

Bismillah, Rising Star Moslem Legend, Amin

Discussion

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Kategori Tulisan

Arsip per Bulan

Masukkan alamat e-mail Anda untuk berlangganan blog ini dan menerima pemberitahuan tulisan-tulisan baru melalui e-mail.

Join 1,985 other followers

%d bloggers like this: