What is the Extinction coefficient ?

02 March 2017 3,261 2 View

What is the experimental design ?

31 December 2016 153 3 View

What is the meaning of this formula ?

In some protocol of amylase activity determination with DNS . Amylase is expressed as ug amylase/min/milligrame of proteins. my question is what is the meaning of prooteins in this ???

11 December 2016 599 1 View

What is the interest of humic acid in agriculture ??

i want to know the interest of humic acid in agriculture research . thanks

08 September 2016 8,254 5 View

What is the impact factor of a journal ?

06 July 2016 3,647 0 View

How to compare the interaction means?

In statistics, when you have an significant interaction between two variables (for exemple concentration and variety). You run an ANOVA test and concentration x variety is significant. How to...

05 June 2016 9,135 6 View

How to interpret ANOVA ?

05 June 2016 2,472 8 View

How to compare means ?

04 May 2016 7,931 4 View

What statistic test to do with spss?

01 February 2016 8,556 8 View

How to quantify and mesure Na+ ,Cl-, K+ in plant tissues?

31 December 2015 7,254 7 View

How to calculate Total Flavonoid?

I analyzed flavonoid total spectrophotometry, the procedure as below: 2 ml supernatan added 5 ml dd.H2O, then added 0,15 ml NaNO2 5%, 5 minutes later added 0,15 ml AlCl3 10%, After 6 minutes,...

01 March 2021 6,722 1 View

What is this fern?

Please help me to identify this fern species. Thank you in advance.

24 February 2021 2,435 5 View

How to use Remote sensing and GIS applications for mapping the available medicinal plants within the locality/municipality?

Hello, I'm very interested in mapping and managing the conservation of the Philippine traditional medicinal plants, in which I think is very helpful in the field of medicine for further analysis...

21 February 2021 374 5 View

What is the best way to isolate Hydrolysable tannins on Sephadex column?

I am currently preparing to isolate polyphenolics (Hydrolysable tannins) from aqueous extract of a plant. I want to set up a small sephadex column to guide the major isolation on a laerge...

18 February 2021 1,455 3 View

Can medicinal plants really play an inherent rule in the COVID-19 tackle?

Numerous scientific reports cited plant extracts with potential antiviral activity and even anti-COVID-19? Why these findings are neglected? I remember very well the warning released by the WHO to...

17 February 2021 2,141 9 View

Does calculating the interaction index between a drug and a food matrix make sense?

Dear all, I'm conducting the revisions of some of my manuscript, with is the impact of the combination of Aspirin and a fruit juice in colorectal cancer cells. Two of the reviewers have asked to...

16 February 2021 3,141 3 View

Is there any solar electric power plant having the concentrated photovoltaic modules?

The solar photovoltaic (PV) power plant uses commercial (non-concentrated) PV modules which are quite simple in design and reliable. They can work on fixed orientation and don't need the moving...

16 February 2021 3,796 9 View

Can any suggest me good method of GC MS for the separation of Flavonoids?

I prepared the ethyl acetate, ethanol and butanol fraction from the ethanol extract of seed for isolation of Flavonoids. Amongst them ethanol fraction showing shinoda test positive for polar...

13 February 2021 8,263 3 View

Why is there cloudy white solution in flavonoid test tube?

I do flavonoid test for biscuit incorporated with muntingia fruit powder. Sample extracted with metanol (1:10 ,w/v), macerated 24h, sentrifuged and filtered. Supernatan used for analysis. I have...

08 February 2021 6,779 4 View

Why do my polyphenol measurements fail?

In order to measure the polyphenols in broccoli, we prepared a reagent for measurement using the following procedure. 1. Extract the crushed plant with 70% methanol. 2. Mix 1 ml of the extract...

07 February 2021 845 4 View