The effect of solvents on the Soxhlet extraction of omega 3 from perah oil by Hadi Tan, Nuraimi Azlan, Siddique, Bazlul Mobin, Muhammad, Ida Idayu, Fook, Seng Kok

“…The concentration of extracted omega 3 was measured using Gas chromatography (GC), the colour of extracted oil was classified using colormeter and the total phenolic content (TPC) by Folin-Ciocalteau colorimetry. Based on the total yield extraction of the oil, the result shows that hexane solvent (57.5%) shows better performance compared to hexane-methanol (53.42%) and ethanol-methanol (34.52%). …”

Phytochemical profile of orthosiphon aristatus samples prepared by acetone precipitation by Chua, Lee Suan

“…Method: The commonly used analytical techniques of acetone precipitation (gravimetry) and vanillin assay (colorimetry) were used to estimate total saponin in the plant extracts. …”

Potential of East Java indigenous Anammox microbes from Selorejo Reservoir as degrading agents of ammonia wastewater by Much. Sayfulloh Alwy, Much. Sayfulloh Alwy, Eli Hendrik Sanjaya, Eli Hendrik Sanjaya, Abdul Khafid Syahroni, Abdul Khafid Syahroni, MD. Din, Mohd. Fadhil, Suharti, Suharti, Mieke Alvionita, Mieke Alvionita, Anugrah Ricky Wijaya, Anugrah Ricky Wijaya, Muntholib, Muntholib, Sitoresmi Prabaningtyas, Sitoresmi Prabaningtyas, Chen, Hong

“…The stages in this research include: (1) sample preparation (2) Anammox microbes analysis using NGS (3) isolation of bacteria with an Anaerobic Bottle Reactor (4) testing bacterial activity in reducing ammonia levels using Colorimetry. The results of this study showed that Next Generation Sequencing (NGS) analysis detected an indigenous Anammox microbial of Cadindatus kuineneia stutgartensis with an abundance of 0,1% of the total microbes present. …”
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Anammox microbial biodiversity in the Karangkates Reservoir Malang and its activity as an ammonia-rich waste degradation by Abdul Khafid Syahroni, Abdul Khafid Syahroni, Eli Hendrik Sanjaya, Eli Hendrik Sanjaya, Much. Sayfulloh Alwy, Much. Sayfulloh Alwy, MD. Din, Mohd. Fadhil, Chen, Hong, Sitoresmi Prabaningtyas, Sitoresmi Prabaningtyas, Suharti, Suharti, Mieke Alvionita, Mieke Alvionita, Anugrah Ricky Wijaya, Anugrah Ricky Wijaya

“…This study aims to isolate anammox bacteria from sediments from Karangkates reservoir using the Bottle Batch Reactor method, as well as testing the activity of anammox bacteria in reducing excess ammonia in synthetic wastewater containing ammonia using colorimetry method. This study also identifying the biodiversities of anammox microbes insediment sample using Next Generation Sequencing (NGS) testing. …”
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