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Introduction
Additional affiliations
September 2014 - present
June 2013 - August 2013
June 2014 - August 2014
Minsyam Sdn Bhd
Position
- Research and Development Executive
Publications
Publications (7)
Date palm is one of the oldest cultivated plants and there are several thousand cultivars and varieties around the world. Date seed is a byproduct and a waste of date fruit. It is usually discarded and utilized as animal fodder. Studies have shown that date seeds are rich in dietary fibre, phenolic and antioxidant which can be extracted for industr...
Date palm is one of the oldest cultivated plants and there are several thousand cultivars and varieties around the world. Date seed is a byproduct and a waste of date fruit. It is usually discarded and utilized as animal fodder. Studies have shown that date seeds are rich in dietary fibre, phenolic and antioxidant which can be extracted for industr...
Over the past eight decades, numerous research has been conducted on the extraction of Zingiber zerumbet rhizome. The mini-review includes information on the pharmacological properties of zerumbone extracted from Z. zerumbet rhizome and the extraction methods conducted over the previous 80 years. Zerumbone is recognised as having a proven pharmacol...
Extraction is crucial for herbal extraction to ensure high quality of bioactive compounds from natural herbs. In the current work, Zingiber Zerumbet was extracted via subcritical water extraction (SWE) and is compared with the conventional solvent extraction, Soxhlet. The quality of the extract was investigated in terms of zerumbone concentration,...
The purpose of this study is to investigate the medicinal properties of Moringa oleifera (M. oleifera) leaves towards xanthine oxidase inhibitory activity by using water-based extraction methods such as boiling extraction, subcritical water extraction (SWE) and ultrasonic-assisted extraction (UAE). Boiling extraction is chosen as the control method...
![Figure 1. Water phase diagram [9]](profile/Norrashidah-Mokhtar/publication/327562274/figure/fig1/AS:674612400631809@1537851538805/Water-phase-diagram-9_Q320.jpg)
Subcritical water extraction (SWE) is an alternative technique implemented water as a solvent. The objective of this work was to extract Zingiber zerumbet rhizome using SWE at a temperature range from 100ºC to 180ºC with duration from 5 to 25 min. The extracts were analysed for total phenolic content (TPC), total flavonoid content (TFC) and radical...
In this study, a simple, green and eco-friendly method was used for the synthesis of silver nanoparticles (Ag-NPs) in alkaline treated Tapioca starch. The XRD results indicated that Ag-NPs were produced after stirring for several hours at 80 °C. TEM image showed the Ag-NPs were in spherical shape with average size of 11 nm. The UV-vis results revea...
Questions
Questions (6)
Hi
Currently i'm using post-hoc tukey test to analyze the significant terms of each factor i used.
Temperature : 30, 40. 50, 60
Time : 5, 10, 15, 20, 25
To analyse the tukey test, for each factor, i fixed the parameter and varied another condition
(in e.g :
1: To analyse the significant of time (5-25 min) as a fixed temperature of 30
2: to analyse the significant of temperature (30-60) as a fixed time of 5 min
(for each different factor i change the value of responses)
ANOVA give significant (p<0.05) as a whole temperature, while insignificant (p>0.05) for time factor
However, for tukey-test expression the letter was different for each other.
The example of data as attached.
The explaination of tukey test as followed.
for instance:
1) For the effect of extraction time at 30 and 60ºC, extraction time were not significantly different (p > 0.05) from each other.
For the effect of extraction temperature on TFC using UAE through tukey’s test analysis, its shows that at 5 min sonication, extraction temperature at 30ºC were significantly different (p < 0.05). At 15 min sonication, TFC at 30ºC and 50ºC were significantly different (p < 0.05). Meanwhile, at 25 min sonication, low temperature (30, 40ºC) were significantly different (p < 0.05)
my question.
1) does the way of my reporting data was suitable/right?
2) How to report if there is combination of two letter?.(e.g ab, abc, bc, d)
3) should i present the tukey test in separated graph of fixed parameter or tabulated data as attached?
I am planning to extract plant samples and analyse without evaporate the solvent.
as for DPPH analysis, it is needed to be in different concentration to get IC50. Thus, I am wondering on how to determine the concentration without evaporating the solvent.
for plant/herb sample preparation, can i re-dry the sample before extraction process to reduce the moisture content? (i have dried those before, unfortunately some of them are still 10-15% moisture content) (some of them are been grounded)
and is it ok to natural drying (for re-dry process), does it will affect the bioactive compound inside?
In deproteinization process of fish scale, the procedure said to have 1% of enzyme to be added into 10% (w/v) of fish scale, and I am confusing on how to prepare 1% of enzyme either is related into fish scale or volume of enzyme.
Thank you.
I am confused,
what is the meaning of bioactive-rich extracts?
is it same with oleoresin?
does it same with bioactive compounds?
thank you.
I would like to know, how I can study the effectiveness of an extraction procedure?
Is the solubility of material (analyte) to the solvent one of the criteria?
Also, either mass transfer coefficient and kinetic study, which one is most important to be studied for optimal design of the process?
Thank you =)
