Pigeon Pea (Casanus Cajan L.) is one of the local foods in South Sulawesi. pea seeds contain protein that body can absorb. This study aims to determine optimum operating conditions for extracting pigeon on and yield using Ultrasonic-Assisted Extraction (UAE). Response Surface Methodology (RSM) with Box-Behnken Design (BBD) was used by considering three variables, time (30, 40, 50 min), temperat...

The thermophilic fungus Humicola grisea var. thermoidea secretes extracellular xylanase when grown on solid and in liquid media containing wheat bran and banana plant residue as substrates, respectively. At 55oC, xylanase from the culture filtrate of H. grisea var. thermoidea grown on banana stalk retained 50% of its activity after 28 h of incubation. A xylanase (X2) was isolated from solid sta...

Salah satu minuman siap minum yang popular adalah teh. Daun kalistemon (Melaluca viminalis) memiliki aroma menyegarkan dan aktivitas antioksidan tinggi dapat dimanfaatkan sebagai teh herbal. Kurma Sukari digunakan pemanis alami pada Penelitian ini bertujuan untuk menginvestigasi pengaruh suhu perebusan perbandingan penambahan ekstrak kurma herbal daun terhadap antioksidan, total gula, komponen ...

Fractionation processes of fish oil fatty acid for the production of long-chain polyunsaturated fatty acids (PUFA) of omega-3 series have become very important because of the beneficial properties of these substances to human health, and, as a functional food. To obtain high yield of extraction and concentration of omega-3, rainbow sardine fish (Dussumieria acuta) oil were studied by: supercrit...

The present study is concerned with the improvement of Bacillus licheniformis strain GCB30 for alpha amylase production in 250 ml Erlenmeyer flasks. Chemical mutation using ethyl methanesulfonate (EMS 50-300 μ/ml) was undertaken for 10-60 min. Twenty eight isolates were selected on the basis of clear zones of starch hydrolysis. Only one isolate designated as B. licheniformis EMS-200 gave 102.78...

Lipases from different sources have distinct properties, such as specificity, stability and optimal operational conditions. Moreover, different conditions of lipase production may alter these enzyme properties. Therefore, the aims of this study were related to the evaluation of lipase activity of Yarrowia lipolytica IMUFRJ 50682 (isolated from Baía de Guanabara, Brazil) produced under submerged...

in this paper, the effect of transmembarne pressure (tmp) at levels of 1, 1.75 & 2.5 bar, process temperature (t) at levels of 30 & 60oc and operation time (t) at levels of 15, 30, 45 & 60 minute on the permeate flux, sugar rejection, non-sugar rejection and fouling as membrane performance indexes investigated. membrane system used in this research was ceramic tubular module and it had effectiv...

in the present study, saffron was dried using a heat pump-assisted hybrid photovoltaic-thermal solar dryer. the effect of different drying air temperatures at three levels (40, 50, and 60oc) and two different modes of the dryer (with and without heat pump system) were investigated on drying behaviour of saffron. after collecting the pertinent data, eleven drying models were used to describe dry...

Kirinyuh merupakan tanaman semak yang tersebar luas di daerah tropis. Tanaman kirinyuh banyak tumbuh liar provinsi Aceh. Salah satu pemanfaatan secara tradisional maupun mekanis (Chromolaen odorata L.) adalah dengan mengolah menjadi produk alternatif teh herbal. Teknik pengolahan dari bahan baku komoditas pertanian biasanya dilakukan proses pengeringan. Penelitian ini bertujuan untuk memanfaatk...

As an environmentally friendly alternative to chemical treatment, this research aimed to establish whether dielectric heating at high frequency of infested lodgepole pine (Pinus contorta) boards and logs, obtained from the mountain pine beetle devastated forests of British Columbia, can result in wood free of living fungi, nematodes and insects. The sample set contained 230 boards, 50x150 and 5...