Results 11 to 20 of about 65,676 (304)

Fed-batch bioreactor with mortality rate [PDF]

open access: yesIFAC Proceedings Volumes, 2013
We address the problem of finding an optimal feedback control for feeding a fed-batchbioreactor with one species and one substrate, from a given initial condition to a given targetvalue in a minimal amount of time. Mortality rate for the biomass and nutrient recycling are taken into account in this work. The optimal synthesis (optimal feeding strategy)
Bayen, Térence   +2 more
openaire   +6 more sources

Screening for optimal protease producing Bacillus licheniformis strains with polymer-based controlled-release fed-batch microtiter plates

open access: yesMicrobial Cell Factories, 2021
Background Substrate-limited fed-batch conditions have the favorable effect of preventing overflow metabolism, catabolite repression, oxygen limitation or inhibition caused by elevated substrate or osmotic concentrations.
Tobias Habicher   +4 more
doaj   +1 more source

Continuous fed-batch strategy decreases acetic acid production and increases volatile ester formation in wines under high-gravity fermentation

open access: yesOENO One, 2023
High sugar fermentation elevates acetic acid levels in wines, which can be avoided by applying the continuous fed-batch strategy. In this study, yeast gene expressions and wine volatile compounds were evaluated by quantitative real-time PCR (RT-qPCR ...
Haixia Deng, Meiyu Wang, Erhu Li
doaj   +1 more source

Microbiology of Fed-batch Composting

open access: bronzeMicrobes and Environments, 2005
Akira Hiraishi, Takashi Narihiro
openaire   +4 more sources

Semi‐supervised classification of fundus images combined with CNN and GCN

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Diabetic retinopathy (DR) is one of the most serious complications of diabetes, which is a kind of fundus lesion with specific changes. Early diagnosis of DR can effectively reduce the visual damage caused by DR. Due to the variety and different morphology of DR lesions, automatic classification of fundus images in mass screening can ...
Sixu Duan   +8 more
wiley   +1 more source

In vitro growth of Curcuma longa L. in response to five mineral elements and plant density in fed-batch culture systems. [PDF]

open access: yesPLoS ONE, 2015
Plant density was varied with P, Ca, Mg, and KNO3 in a multifactor experiment to improve Curcuma longa L. micropropagation, biomass and microrhizome development in fed-batch liquid culture. The experiment had two paired D-optimal designs, testing sucrose
Rabia F El-Hawaz   +2 more
doaj   +1 more source

Limitations on production methods for PHAs obtention: a systematic review

open access: yesDyna, 2020
This systematic review shows the most important characteristics of the methods used for the production of polyhydroxyalkanoates (PHAs). Three databases were consulted: Science Direct, Scopus, and Google Scholar. A total of 66 publications were obtained.
Wilman Alcaraz Zapata   +1 more
doaj   +1 more source

Glucose transport engineering allows mimicking fed-batch performance in batch mode and selection of superior producer strains

open access: yesMicrobial Cell Factories, 2022
Background Fed-batch mode is the standard culture technology for industrial bioprocesses. Nevertheless, most of the early-stage cell and process development is carried out in batch cultures, which can bias the initial selection of expression systems ...
Daniela Velazquez   +5 more
doaj   +1 more source

Effect of different fermentation strategies on Bacillus thuringiensis cultivation and its toxicity towards the bagworm, Metisa plana Walker (Lepidoptera: Psychidae)

open access: yesEgyptian Journal of Biological Pest Control, 2020
The effect of batch and fed-batch fermentation on the cultivation performance of Bacillus thuringiensis was investigated using a 5-l stirred tank bioreactor.
Mohamed Mazmira Mohd Masri   +1 more
doaj   +1 more source

Levan Production in Shake Flask and Fermenter Influence of Feeding Strategy on Levan Yield and Molecular Weight Distribution [PDF]

open access: yesE3S Web of Conferences, 2023
Effect of feeding strategy on levan production was studied in a shake flask and a 5 L lab scale fermenter. In a shake flask, levan specific substrate yield (YP/S) increased from 0.35 g levan/g sucrose to 0.48 g levan/g sucrose with repeated batch feeding.
Veerapandian Bhuvaneshwari   +5 more
doaj   +1 more source

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