Newly developed medium and strategy for bacterial cellulose production

Çakar, Fatih; Katı, Ahmet; Özer, Işılay; Demirbag, Deniz Dilan; Şahi̇n, Fikrettin; Aytekin, Ali Özhan

doi:10.1016/j.bej.2014.07.002

Cited by 49 publications

(21 citation statements)

References 16 publications

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“…Despite all the unique properties, BC’s high production cost still limits its production at an industrial scale. BC production requires a fermentation medium rich in glucose and other nutrients, which is costly and can account for up to 30% of the total production cost [ 13 ]. Low BC yield and long fermentation time also contribute to the high production cost.…”

Section: Introductionmentioning

confidence: 99%

Do Kombucha Symbiotic Cultures of Bacteria and Yeast Affect Bacterial Cellulose Yield in Molasses?

Devanthi

Kho

Nurdiansyah

et al. 2021

JoF

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Bacterial cellulose (BC) is a valuable biopolymer typically observed in Kombucha with many potential food applications. Many studies highlight yeast’s roles in providing reducing sugars, used by the bacteria to grow and produce BC. However, whether yeast could enhance the BC yields remains unclear. This study investigates the effect of yeast Dekkera bruxellensis on bacteria Komagataeibacter intermedius growth and BC production in molasses medium. The results showed that the co-culture stimulated K. intermedius by ~2 log CFU/mL, which could be attributed to enhanced reducing sugar utilization. However, BC yields decreased by ~24%, suggesting a negative impact of D. bruxellensis on BC production. In contrast to other studies, regardless of D. bruxellensis, K. intermedius increased the pH to ~9.0, favoring the BC production. Furthermore, pH increase was slower in co-culture as compared to single culture cultivation, which could be the reason for lower BC yields. This study indicates that co-culture could promote synergistic growth but results in the BC yield reduction. This knowledge can help design a more controlled fermentation process for optimum bacterial growth and, ultimately, BC production.

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Section: Introductionmentioning

confidence: 99%

Do Kombucha Symbiotic Cultures of Bacteria and Yeast Affect Bacterial Cellulose Yield in Molasses?

Devanthi

Kho

Nurdiansyah

et al. 2021

JoF

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“…However, when glucose was added to the pretreatment liquids to achieve same concentration as used in the standard medium (20 g/L), a lower yield of mg nanocellulose/mg glucose was observed compared to that with lower glucose concentration (1.5 g/L glucose; Table ). Kurosumi, Sasaki, Yamashita, and Nakamura () also observed better yields of bacterial cellulose production in different types of fruit juices compared to synthetic media, but a glucose inhibitory effect at higher concentrations may not apply here, since others have seen effective bacterial cellulose production at concentrations even higher than 20 g/L (Cakar et al, ). The results show that the adapted strain is capable of both improved glucose utilization and nanocellulose productivity; however, further investigation is needed to understand what mechanism and compounds are involved in triggering the membrane formation with higher yield here at lower concentration of glucose.…”

Section: Resultsmentioning

confidence: 84%

Adaptive laboratory evolution of nanocellulose‐producing bacterium

Vasconcellos

Farinas

Ximenes

et al. 2019

Biotech & Bioengineering

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Adaptive laboratory evolution through 12 rounds of culturing experiments of the nanocellulose-producing bacterium Komagataeibacter hansenii ATCC 23769 in a liquid fraction from hydrothermal pretreatment of corn stover resulted in a strain that resists inhibition by phenolics. The original strain generated nanocellulose from glucose in standard Hestrin and Schramm (HS) medium, but not from the glucose in pretreatment liquid. K. hansenii cultured in pretreatment liquid treated with activated charcoal to remove inhibitors also converted glucose to bacterial nanocellulose and used xylose as carbon source for growth. The properties of this cellulose were the same as nanocellulose generated from media specifically formulated for bacterial cellulose formation. However, attempts to directly utilize glucose proved unsuccessful due to the toxic character of the lignin-derived phenolics, and in particular, vanillan and ferulic acid.Adaptive laboratory evolution at increasing concentrations of pretreatment liquid from corn stover in HS medium resulted in a strain of K. hansenii that generated bacterial nanocellulose directly from pretreatment liquids of corn stover. The development of this adapted strain positions pretreatment liquid as a valuable resource since K. hansenii is able to convert and thereby concentrate a dilute form of glucose into an insoluble, readily recovered and value-added product-bacterial nanocellulose.

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“…€60 to ca. €9000 per kilogram [ 62 ]. In this context, over the last few years, as a means to decrease the BNC production costs, several studies have investigated and reported the use of agro-industrial by-products as a fermentation medium with or without specific nutritional supplementation (notably with N and P sources), showing promising results in terms of productivity when compared with the HS medium.…”

Section: Biosynthesis and Production Methods Of Bacterial Nanocellmentioning

confidence: 99%

Bacterial Nanocellulose toward Green Cosmetics: Recent Progresses and Challenges

Almeida

Silvestre

Vilela

et al. 2021

IJMS

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In the skin care field, bacterial nanocellulose (BNC), a versatile polysaccharide produced by non-pathogenic acetic acid bacteria, has received increased attention as a promising candidate to replace synthetic polymers (e.g., nylon, polyethylene, polyacrylamides) commonly used in cosmetics. The applicability of BNC in cosmetics has been mainly investigated as a carrier of active ingredients or as a structuring agent of cosmetic formulations. However, with the sustainability issues that are underway in the highly innovative cosmetic industry and with the growth prospects for the market of bio-based products, a much more prominent role is envisioned for BNC in this field. Thus, this review provides a comprehensive overview of the most recent (last 5 years) and relevant developments and challenges in the research of BNC applied to cosmetic, aiming at inspiring future research to go beyond in the applicability of this exceptional biotechnological material in such a promising area.

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Newly developed medium and strategy for bacterial cellulose production

Cited by 49 publications

References 16 publications

Do Kombucha Symbiotic Cultures of Bacteria and Yeast Affect Bacterial Cellulose Yield in Molasses?

Do Kombucha Symbiotic Cultures of Bacteria and Yeast Affect Bacterial Cellulose Yield in Molasses?

Adaptive laboratory evolution of nanocellulose‐producing bacterium

Bacterial Nanocellulose toward Green Cosmetics: Recent Progresses and Challenges

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