What is the best commercial extraction method of Phycocyanin from spirulina?

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Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

How to enrich pig excreta for increasing nutrient quality organically ?

Pig slurry is rich in major and minor nutrients. Is there any way to improve / Enrich its manure quality to be used in agriculture organically ? please share your knowledge.

09 August 2024 5,604 2 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 267 3 View

Unusual intensity drop in some sections of chromatograms in DDA?

Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...

07 August 2024 3,217 4 View

Leaf area of tomato ?

Hi How can this equation Ln(LA) = 1.038 + 0.89 ln(X) be applied to calculate the leaf area of a tomato? Can you explain with an example and what is the substitution of Ln and ln?

06 August 2024 2,508 2 View

Why did the authors extrapolate a phenotype that they experimentally proved in one bacterial strain across the whole genus of the organism?

I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...

05 August 2024 6,787 4 View

How to preform densitometry on SDS-page bands?

I ran a SDS-page of a bacterial lysate and I want to quantify protein concentration in a specific band. I was thinking of using a standards ladder or make some standards are different...

05 August 2024 9,805 3 View

XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds?

XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds

04 August 2024 3,018 3 View

Which solvent is better to dissolve with secondary metabolites extracted from fungi?

I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...

03 August 2024 4,725 2 View

What are the limitations and challenges of using machine learning for predicting concrete compressive strength in practical applications?

Machine learning (ML) has shown great potential in predicting the compressive strength of concrete, an important property for structural engineering. However, its practical application comes with...

03 August 2024 2,545 2 View

Is the black sediment consider as sand? If not, how can I filter it out?

Hi researchers! I'm working on soil texture analysis, and the end result for sand is doubtful because there is black sediment appearing after drying, as shown in the figure. Is it considered sand?...

30 July 2024 557 2 View

Where to start the Analytical model for Dry sliding wear of metal surface ?

I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.

29 July 2024 6,115 0 View

Issues with Malaria Coated Nitrocellulose Membrane Releasing Moisture?

Hello, I am currently working with Malaria Pf/Pan nitrocellulose membranes coated for malaria detection. After drying the coated membranes in an Incubator (overnight at 37°C), I've noticed that...

16 July 2024 7,937 1 View

Why does total carboydrate content decrease when increasing the vacuum degree?

I have conducted a survey on the "effect of vacuum drying conditions on carbohydrate content of angelica.S". The result show that, when increasing the vacuum degree, the carbohydrate content first...

13 July 2024 592 1 View

How to convert ppm to μmoles/g?

Hello, I am trying to convert to convert ppm of a solution to μmoles/g of dry sample.

09 July 2024 7,081 1 View

What is the protocol for enzyme freeze drying?

what is the protocol for enzyme freeze drying?

09 July 2024 6,464 6 View

Collecting/storing plant stable isotope samples?

Hello! I am planning to collect plant leaf samples for stable isotope analysis. I will be collecting them from the field and storing fresh tissue on ice. I have heard that bringing along a food...

01 July 2024 9,125 1 View

Chemical composition of curing agent for PDMS (Sylgard 184 Kit) and solid percentage?

1- Please provide information about the chemical composition of curing agent for PDMS(Sylgard 184 Kit)? 2- what dry solid percentage is obtained for a ratio of 10 to 1(PDMS to hardener)?

30 June 2024 6,814 2 View

Do body proportions of sharks change after drying?

Dear colleagues, I would be grateful to anyone who can answer my two questions: 1. Do the proportions of the shark's body change after drying? In other words, is it possible to discriminate two...

30 June 2024 6,101 3 View

How can I dry emulsion (there are some non dissolve substance in my organic solution ) by Na2SO4? How can I separate my non dissolved material ?

26 June 2024 9,122 5 View