Inoculum Size and Age Studies on Single and Mixed Strain Fermentation of Grape Juice

Kaur, Sandeep; Kaur, Karamjot; Bhushan, Bharat; Kaur, Manveer; Hans, Monika

doi:10.22207/jpam.14.3.54

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Consequently, larger inoculum sizes can decrease energy, labor, and capital costs [49]. Nevertheless, if the inoculum size was too large, cells would compete for nutrients and consume sugars for growth at the expense of bioethanol production [50]. Therefore, the inoculum size must be optimized.…”

Section: Optimization Of Ethanol Production Using Plackett-burman Designmentioning

confidence: 99%

Enhancement of bioethanol production by Saccharomyces cerevisiae under high gravity fermentation using sequential optimization strategy

Mohammed¹,

Abo-Alkasem

Ammar

et al. 2021

Egypt. J. Chem.

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Using high gravity fermentation for bioethanol production by Saccharomyces cerevisiae is faced with many challenges such as increasing osmotic stress and viscosity. Unfortunately, increasing specific gravity was accompanied by a decrease in fermentation efficiency. A two-stage sequential optimization strategy was carried out to solve this problem. The first stage was carried out using the Plackett-Burman Design in which eight factors were investigated at three molasses specific gravities (1.130, 1.145, 1.160). Urea, wheat bran, soy flour, and inoculum size were significant model terms and had positive effect on bioethanol production. When a validation test was performed using the predicted conditions, about a more than two-fold increase in fermentation efficiency (FE) was achieved (83%) at specific gravity 1.130, compared to the basal condition. The second stage (Taguchi Design) was conducted using eight factors. Urea, wheat bran, temperature, and agitation speed showed a significant effect on fermentation efficiency. A validation test was carried out and up to 83.82 % fermentation efficiency was recorded, which was very close to that achieved under normal gravity. In addition to the high value of FE, this strategy is cost-effective and time-saving.

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Section: Optimization Of Ethanol Production Using Plackett-burman Designmentioning

confidence: 99%

Enhancement of bioethanol production by Saccharomyces cerevisiae under high gravity fermentation using sequential optimization strategy

Mohammed¹,

Abo-Alkasem

Ammar

et al. 2021

Egypt. J. Chem.

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“…Therefore, it is necessary to find a new fermentation strategy to improve the industrial productivity of ε-PL. A co-culture fermentation strategy had been used in many food fields to improve the flavor of fermented food [13][14][15], and also to improve the production of products such as L-ornithine [16] and nisin [17]. However, there is no report about the production of ε-PL by co-culture fermentation.…”

Section: Introductionmentioning

confidence: 99%

Improvement of ε-Poly-l-lysine Production by Co-Culture Fermentation Strategy

Pan

Zhang

et al. 2023

Fermentation

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ε-poly-l-lysine (ε-PL) has been routinely used as a natural and safe preservative for many years in the food industry. However, most existing production methods struggle to achieve low cost and high production simultaneously. In this work, we present a co-culture fermentation strategy to enhance ε-PL production. Specifically, we screened a strain from five different strains that could be co-cultured with Streptomyces albulus to raise the production of ε-PL. Subsequently, a single factor experiment and response surface design were used to optimize the conditions of co-culture fermentation to further improve the production of ε-PL. Moreover, the optimal fermentation process was successfully verified in a 2-L fermentor with fed batch fermentation. The production of ε-PL reached 27.07 ± 0.47 g/L by 144 h. Compared with single strain (S. albulus) fermentation, the production of ε-PL was increased by 31.47%. At the same time, the amount of bacteria increased by 19.62%, which means that the ε-PL synthesis ability of bacteria had been improved. All the obtained results showed great potential for co-culture fermentation in large-scale ε-PL production and provide a new fermentation strategy for ε-PL biosynthesis.

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An integrated biorefinery approach for bioethanol production from sugarcane tops

Sherpa

Kundu

Banerjee

et al. 2022

Journal of Cleaner Production

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Inoculum Size and Age Studies on Single and Mixed Strain Fermentation of Grape Juice

Cited by 4 publications

References 19 publications

Enhancement of bioethanol production by Saccharomyces cerevisiae under high gravity fermentation using sequential optimization strategy

Enhancement of bioethanol production by Saccharomyces cerevisiae under high gravity fermentation using sequential optimization strategy

Improvement of ε-Poly-l-lysine Production by Co-Culture Fermentation Strategy

An integrated biorefinery approach for bioethanol production from sugarcane tops

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