scholarly journals Isolation and purification ofent-pimara-8(14),15-diene from engineeredAspergillus nidulansby accelerated solvent extraction combined with HPLC

2014 ◽  
Vol 6 (4) ◽  
pp. 1227-1234 ◽  
Author(s):  
K. Bromann ◽  
K. Viljanen ◽  
V. M. Moreira ◽  
J. Yli-Kauhaluoma ◽  
L. Ruohonen ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Solvent Extraction ◽  
Aspergillus Nidulans ◽  
Accelerated Solvent Extraction ◽  
Purification Method ◽  
Isolation And Purification ◽  
Diterpene Hydrocarbon

This paper describes a purification method for tricyclic diterpene hydrocarbonent-pimara-8(14),15-diene produced inAspergillus nidulansand reports an antioxidant activity for this compound.

Effect of Particle Size on the Oil Yield and Catechin Compound Using Accelerated Solvent Extraction

2013 ◽  
Vol 60 (1) ◽  
Author(s):  
Mohd Azizi Che Yunus ◽  
Manzurudin Hasan ◽  
Norasikin Othman ◽  
Siti Hamidah Mohd-Setapar ◽  
Liza Md.-Salleh ◽  
...  
Keyword(s):  
Particle Size ◽  
Solvent Extraction ◽  
Accelerated Solvent Extraction ◽  
Extraction Time ◽  
Oil Yield ◽  
Particle Sizes ◽  
Experimental Range ◽  
Areca Catechu ◽  
Effect Of Particle Size ◽  
Extraction Cycle

Kajian ini bertujuan untuk mengkaji kesan saiz zarah ke atas pengekstrakan sebatian catechin daripada biji Areca catechu L. dengan menggunakan Pengekstrakan Pelarut Terpecut (PPT). Saiz zarah biji Areca catechu dipelbagaikan dari 75 μm sehingga 500 μm. Pengekstrakan telah dijalankan padaparameter tetap iaitu suhu (140oC), tekanan (1500 psi), masa (10 minit), isipadu semburan (60%) dan satu kitaran pengekstrakan, masing-masing. Hasil minyak peratusan yang lebih tinggi adalah 300 mg minyak / gram sampel (30.00% pati minyak) ditemui pada 125 μm. Walaubagaimanapun, kandungan catechin dalam pati minyak hanya 0.0375 mg catechin / gram sampel. Saiz zarah yang terbaik dalam julat uji kaji ini telah dikenal pasti pada 500 μm yang memberikan kandungan catechin yang tinggi iaitu 0.0515 mg catechin / gram sampel dari 247.5 mg minyak / gram sampel (24.75% pati minyak). Kata kunci: Saiz zarah; catechin; LC-MS-TOF; pengekstrakan pelarut terpecut The purpose of this work is to investigate the effects of particle size on the extraction of catechincompound from Areca catechu L. seeds by using Accelerated Solvent Extraction (ASE). The particle sizes of Areca catechu L. seeds are varied from 75 µm until 500 µm. The extraction is conducted at fixed parameters which are temperature (140oC), pressure (1500 psi), extraction time (10 minutes), flush volume (60%) and the static cycle is done for 1 extraction cycle respectively. Higher percentage oil yield of 300mg oil/gram of sample (30.00% oil yield) is found at 125 µm. However, the amount of catechin in oil yields is only 0.0375 mg of catechin/gram of sample. The best of particle size within the experimental range has been identified at 500 µm which gives a high content of catechin with 0.0515 mg Catechin/gram of sample from 247.5 mg oil/gram of sample (24.75% oil yield). Keywords: Particle size; catechin; LC-MS-TOF; accelerated solvent extraction

DETERMINATION OF PAHs IN WASTEWATER IRRIGATED AGRICULTURAL SOIL USING ACCELERATED SOLVENT EXTRACTION

2002 ◽  
Vol 37 (2) ◽  
pp. 141-150 ◽  
Author(s):  
S. Tao ◽  
Y. H. Cui ◽  
J. Cao ◽  
F. L. Xu ◽  
R. Dawson ◽  
...  
Keyword(s):  
Solvent Extraction ◽  
Agricultural Soil ◽  
Accelerated Solvent Extraction
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