Relevant bibliographies by topics / Citric acid production / Dissertations / Theses
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Dissertations / Theses on the topic 'Citric acid production'

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Published: 4 June 2021
Last updated: 26 July 2025

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1

Stevenson, P. M. "Production of citric acid in continuous culture." Thesis, University of Strathclyde, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381121.

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2

Wentworth, Stephen. "Citric acid production using the self-cycling fermentation technique." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68057.

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Self-cycling fermentation is a new technique used to cultivate synchronous populations of cells. This work used the technique in the production of citric acid from a strain of Candida lipolytica. Application of this technique resulted in extremely stable, reproducible patterns of growth and induced a high level of cell synchrony. Synchrony was maintained even throughout long periods of extended nutrient starvation. Thus, self-cycling fermentations can be operated with cycle times significantly longer than the doubling time of the microorganism. Use of this technique led to a full order of magn
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3

Kim, Jin-Woo 1968. "Optimization of citric acid production by Aspergillus niger : NRRL 567 in various fermentation systems." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85077.

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Among the various fungal strains screened for citric acid production, Aspergillus niger is known to produce considerable amounts of citric acid and other organic acids when cultivated in carbohydrate-rich medium in solid substrate fermentation (SSF). Since A. niger on a solid substrate grows under conditions similar to the natural habitat, SSF is ideal to cultivate A. niger for the purpose of producing citric acid.<br>An initial optimization (study 1) was conducted in batch type fermentation experiments using peat moss supplemented with glucose to simulate an organic waste. The effects
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4

Papagianni, Maria. "Morphology and citric acid production of 'Aspergillus niger' in submerged fermentation." Thesis, University of Strathclyde, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407845.

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5

Wayman, Francis Michael. "Analysis and computer-based modelling of citric acid production by Aspergillus niger." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366839.

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6

Sankpal, N. V. "Surface and submerged fermentations by immobilized filamentous fungi: applications to production of gluconic acid, citric acid and dextran gum." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2000. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/5954.

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7

Iqbal, Qaiser. "Quantification of fungal biomass growth during citric acid production by «Aspergillus niger» on expanded clay solid substrate." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19292.

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The growth of fungi on sugar rich wastes can be an economical way of producing citric acid. Nevertheless, conditions for the optimum production of citric acid still need to be established. Using Aspergillus niger, the objective of the present study was to measure the effect on citric acid accumulation and fungal biomass, of sugar and nitrogen supplementation namely as glucose and ammonium, respectively. An inert solid substrate (Hydroton® or HSS) made of expanded clay and wetted with a nutrient solution was used to grow A.
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8

Zhong, Shuping. "Study of Operational Strategies and Carbon Source Selection for the Production of Phytase using Pichia pastoris." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32204.

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The methylotrophic yeast Pichia pastoris has become an efficient expression system for heterologous protein production. Different methods have been studied to enhance cell growth as well as the production of products of interest. Two of the major strategies for improving the product or biomass yields are optimizing bioprocess controls and cultivation conditions. In this work, the characteristics of this yeast system and of its different promoters are discussed, and the effect of operational strategies on cell growth and recombinant protein expression is also studied. The effect of different fe
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9

Ambriano, John Robert. "The development of a continuous stirred tank membrane reactor for determining an accurate rate equation for the production of citric acid by Saccharomycopsis lipolytica." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/11898.

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10

Sarangbin, Somsak. "Breeding of filamentous fungi for citric acid production from cellulosic and starchy materials = Serurōsu-kei narabini denpunkei genryō kara no kuen-san seisansei o yūshita shinkina shijōkin no ikushu /." Electronic version of summary, 1994. http://www.wul.waseda.ac.jp/gakui/gaiyo/2075.pdf.

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11

Ochoa, Estopier Abril. "Analyse systématique des bascules métaboliques chez les levures d'intérêt industriel : application aux bascules du métabolisme lipidique chez Yarrowia lipolytica." Thesis, Toulouse, INSA, 2012. http://www.theses.fr/2012ISAT0056/document.

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L’objectif de notre travail était d’étudier les bascules métaboliques chez Yarrowia li-polytica d’un métabolisme purement oxydatif vers l’accumulation de lipides puis à l’excretion d’acide citrique.Le développement d’un procédé D-stat et d’un mode de conduite fed-batch nous a permis, dans un premier temps, de quantifier les ratios N/C caractéristiques pour chacune des bascules étudiées. Nos résultats montrent que les ratios rN/rC critiques aux bascules métaboliques sont de 0,085 molN.Cmol-1 et de 0,018-0,022 molN.Cmol-1 pour l’accumulation de lipides et production de citrate, respectivement.L’
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12

AVILA, MORALES GABRIELA DE LOS ANGELES. "NUTRITION AND IMMUNITY: MOLECULAR APPROACHES." Doctoral thesis, Università degli Studi di Milano, 2022. https://hdl.handle.net/2434/952952.

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Nutrition plays an important role in modulating livestock species immunity. Therefore, this thesis aimed at evaluating the effects of different dietary molecules used in animal nutrition on mammalian and avian immunity. Both, in vitro functional analyses and OMIC technologies (proteomics and miRNAomics) were implemented herein for an integral characterization of the molecules’ impact on the animals’ immune response. Specifically, in this thesis the in vitro impact of the n-6 conjugated linoleic acid (CLA), citrus pectin (CP), and porcine milk exosomes and n-3 polyunsaturated fatty acids (PUFA)
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13

Shankaranand, Swami V. "Microbial production of citric acid." Thesis, 1995. http://hdl.handle.net/2009/1691.

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14

SHI, WEN-YI, and 施文益. "Microbial production of citric acid from hydrocarbon." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/49822677196217109351.

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15

PAN, FU-HUA, and 潘復華. "Microbial production of citric acid from edible oil." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/84916002302804401362.

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16

Wu, Po-yun, and 吳柏昀. "Production of citric acid by Aspergillus niger using acid hydrolysates of sugarcane bagasse." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/50775011104143866927.

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碩士<br>國立中央大學<br>化學工程與材料工程研究所<br>97<br>Biorefinery, which is one of the renewable technologies, has been developed for few years. And the use of lignocellulosic materials available in agricultural wastes as a source of raw material for citric acid is interest because of their renewable nature and abundance. The present study discusses the hydrolysate of sugar cane bagasse as carbon source for the production of citric acid by Aspergillus niger . First, we use sugar cane bagasse in medium directly, but the results show that it was not a good method. Then we use dilute acid method for sugar cane
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17

Gonçalves, Antónia Regina Sales Machado. "Yarrowia lipolytica whole cells immobilization: impact on citric acid production." Master's thesis, 2014. http://hdl.handle.net/1822/41828.

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Dissertação de mestrado em Bioengenharia<br>Cell immobilization has been used as a strategy to solve the limitations of using suspended free cells in the medium. Whole cells immobilization has been used to improve yields and volumetric productivity of bioprocesses. The central aim of this work was to select and optimize immobilization systems for Y. lipolytica W29 that could be used in the citric acid production from glycerol. Whole-cells immobilization by entrapment into calcium alginate gel matrix and by adsorption on plastic material was studied, with particular focus on the entrapmen
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18

Rodmanee, Sudarin, and 蘇妲琳. "Study on Citric Acid Production from Starch and Agro-industrial Wastes." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/42738069548081213438.

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碩士<br>國立屏東科技大學<br>熱帶農業暨國際合作研究所<br>92<br>Citric acid has been mainly produced through fermentation of carbohydrate by strains of Aspergillus niger. Molasses and starchy materials were found to be the substrates of choice used in industrial scale. Starch is a renewable agricultural substrate available and could be used as potential raw material for citric acid fermentation. This study was to isolate and select strains of yeast and A. niger that are capable of producing citric acid, to elucidate important factors influencing citric acid formation in batch culture using Candida tropical
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19

Ferreira, Patrícia Marlene Alves. "Biotechnological approaches of crude glycerol use: optimization of citric acid production by Yarrowia lipolytica." Doctoral thesis, 2016. http://hdl.handle.net/1822/41859.

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Thesis submitted in fulfilment of the requirements for the degree of Ph.D. in Chemical and Biological Engineering<br>The increase of biodiesel production results in an accumulation of crude glycerol, the main byproduct from biodiesel industry. To take advantage of the glycerol surplus, many biotechnological processes are being studied. Crude glycerol can be used as carbon source to produce citric acid by Yarrowia lipolytica under nitrogen-limited growth conditions. However, other operational and medium conditions directly affect citric acid production. Yield of citric acid depends upon th
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