How can I maintain pH during solid state fermentation?

I am carrying out solid state fermentation using aspergillus niger to produce citric acid.But, I am not able to maintain the pH throughout the process.I want to set my pH between 3--4. What can be...

07 August 2019 702 5 View

What are the different types of low molecular weight organic acids produced by Aspergillus niger?

I want to know the names of low molecular organic acids which can be produced using Aspergillus niger.

05 June 2019 8,463 2 View

What is the reaction between citirc acid and zinc sulphate?

I have added 1g of citric to 4 g of zinc sulphate in the 100 ml of boric acid solution.Now, I want to know the actual reaction happening between them?

05 June 2019 3,506 1 View

What can be done if peaks are not coming proper for organic acids using LC-MS?

I have carried out solid state fermentation of sample containing organic waste.Due to limited facilities, I could only do filtration and centrifugation for my sample.But,when I subjected this go...

04 May 2019 6,330 3 View

What is the role of prescott salt in solid state fermentation?

In few papers,they have mentioned prescott salt is beneficial in solid state fermentation and in few papers they are saying its not..What is the key role of prescott salt and can it be uses...

10 November 2018 5,743 3 View

What type of contamination is observed in solid state fermentation experiment?

I am performing solid state fermentation experiment using aspergillus niger to produce citric acid using organic waste..I want to know which type of contamination is this? And what can be done to...

10 November 2018 3,454 3 View

How much fermented sample is to be taken for citric acid estimation?

I want estimate citric acid from fermented and unfermented sample using titration method.I want to know how much fermented sample can I take and how much do I need to dilute it to? And what should...

09 October 2018 3,712 1 View

How can we acheive the Ph range of 3-6 in a solid state fermentation in tray bioreactor?

I want to set the Ph of substrate consisting of organic waste and leaf litter.The procedure which I followed was: 1.I took 5 g of sample and added 50 ml of D.W. in it then I started adding...

09 October 2018 7,693 3 View

What are the good journals to publish botany(Plant field expt.) work?

Hello all, I want to publish a paper on effect ofa fertilizer on the growth of a particular plant. I want to know which are the good journals with good impact factor and also the probable amount...

07 August 2018 6,233 0 View

Why is methanol added to fermentation media?

I want to carry out SSF using various waste,I wanted to know that what is the reason behind adding methanol to the media? What advantage does it have?

05 June 2018 4,661 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View