scholarly journals Polygalacturonase production by AR2 pectinolytic bacteria through submerged fermentation of raja nangka banana peel (Musa paradisiacavar.formatypica) with variation of carbon source and pectin

2017 ◽  
Vol 193 ◽  
pp. 012005 ◽  
Author(s):  
R Utami ◽  
E Widowati ◽  
A Ivenaria ◽  
E Mahajoeno
Keyword(s):  
Carbon Source ◽  
Submerged Fermentation ◽  
Banana Peel ◽  
Polygalacturonase Production ◽  
Pectinolytic Bacteria

scholarly journals Studies on Nisin Production by Isolated Lactobacillus Species in Aqueous Two-phase System

2007 ◽  
Vol 6 (1) ◽  
pp. 69-80
Author(s):  
Namita Singh ◽  
S. K. Mandal
Keyword(s):  
Carbon Source ◽  
Submerged Fermentation ◽  
Biomass Yield ◽  
Cheese Whey ◽  
Maximum Yield ◽  
Lactobacillus Species ◽  
Phase System ◽  
Two Phase ◽  
Nisin Production ◽  
Aqueous Two Phase System

Isolated lactobacillus sp.(from cheese whey) was examined for its ability to produce bacteriocin like nisin in submerged fermentation and aqueous two-phase system(ATPS) at pH 6.5, 30.C for 18 h fermentation using M17S medium with 5%(v/v) inoculum and the nisin yields were obtained 4500 IU/ml and 20216 IU/ml where as biomass yield obtained 19.55 mg/ml and 31.88 mg/ml respectively.The maximum yield of nisin (24800 IU/ml) and biomass (22.49 mg/ml) were obtained in ATPS (28% PEG 6000 and 4% MgSO4.7H20 with 5-times concentrated M17 medium containing 0.5% lactose as carbon source) under similar conditions.

scholarly journals Promotion of the Hypocrellin Yield by a Co-Culture of Shiraia bambusicola (GDMCC 60438) with Arthrinium sp. AF-5 Fungus

Fermentation ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 316
Author(s):  
Xiaoxiao Yan ◽  
Yongdi Wen ◽  
Menghua Hu ◽  
Zhenqiang Wu ◽  
Xiaofei Tian
Keyword(s):  
Carbon Source ◽  
Submerged Fermentation ◽  
Microscope Observation ◽  
Time Increase ◽  
Anthracene Derivative ◽  
Shiraia Bambusicola ◽  
Hypocrellin A ◽  
Cultivation Strategy ◽  
Fermentation Media

Hypocrellin is a natural 3,10-xylene-4,9-anthracene derivative compound that originates from the stroma of Shiraia bambusicola (S. bambusicola) and Hypocrella bambusae with excellent photobiological activities. Submerged fermentation with the mycelia of S. bambusicola is generally regarded as an ideal technology for hypocrellin production. This study developed a co-cultivation strategy for an obvious promotion of the hypocrellin yield by incubating S. bambusicola (GDMCC 60438) with the endophyte fungus Arthrinium sp. AF-5 isolated from the bamboo tissue. The results indicated that the yield of hypocrellin A (HA) reached a 66.75 mg/g carbon source after an 84-h co-cultivation of the two strains, which was a four-time increase of that by the fermentation only with the S. bambusicola. The microscope observation found that the mycelia of the two strains were intertwined with each other to form the mycelium pellets during the co-cultivation. Moreover, the mycelium pellets of the co-culture showed a contracted and slightly damaged morphology. The addition of H2O2 in the fermentation media could further increase the HA production by 18.31%.

Citric Acid Production from Toba Banana Peel (Musa acuminata Colla) through Submerged Fermentation using Aspergillus niger

2019 ◽  
Vol 13 (4) ◽  
pp. 118-122
Author(s):  
MEVA GUSTINA E. SIDAURUK ◽  
◽  
SURYA NINGSIH HUTAURUK ◽  
MERRY MERYAM MARTGRITA ◽  
ADELINA MANURUNG ◽  
...  
Keyword(s):  
Citric Acid ◽  
Aspergillus Niger ◽  
Submerged Fermentation ◽  
Acid Production ◽  
Musa Acuminata ◽  
Citric Acid Production ◽  
Banana Peel

scholarly journals Effects of Different Carbon Sources on Fumonisin Production and FUM Gene Expression by Fusarium proliferatum

Toxins ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 289 ◽  
Author(s):  
Yu Wu ◽  
Taotao Li ◽  
Liang Gong ◽  
Yong Wang ◽  
Yueming Jiang
Keyword(s):  
Carbon Source ◽  
Biological Effect ◽  
Culture Medium ◽  
Carbon Sources ◽  
Fusarium Proliferatum ◽  
Banana Peel ◽  
Transcriptional Level ◽  
Banana Fruit ◽  
Limited Information ◽  
Future Work

Fusarium proliferatum can infect many crops and then produce fumonisins that are very harmful to humans and animals. Previous study indicates that carbon sources play important roles in regulating the fumonisin biosynthesis. Unfortunately, there is limited information on the effects of carbon starvation in comparison with the carbon sources present in the host of fumonisin production in F. proliferatum. Our results indicated that F. proliferatum cultivated in the Czapek’s broth (CB) medium in the absence of sucrose could greatly induce production of fumonisin, while an additional supplementation of sucrose to the culture medium significantly reduced the fumonisin production. Furthermore, cellulose and hemicellulose, and polysaccharide extracted from banana peel, which replaced sucrose as the carbon source, can reduce the production of fumonisin by F. proliferatum. Further work showed that these genes related to the synthesis of fumonisin, such as FUM1 and FUM8, were significantly up-regulated in the culture medium in the absence of sucrose. Consistent with fumonisin production, the expressions of FUM gene cluster and ZFR1 gene decreased after the addition of sucrose. Moreover, these genes were also significantly down-regulated in the presence of cellulose, hemicellulose or polysaccharide extracted from peel. Altogether, our results suggested that fumonisin production was regulated in F. proliferatum in response to different carbon source conditions, and this regulation might be mainly via the transcriptional level. Future work on these expressions of the fumonisin biosynthesis-related genes is needed to further clarify the response under different carbon conditions during the infection of F. proliferatum on banana fruit hosts. The findings in this study will provide a new clue regarding the biological effect of the fumonisin production in response to environmental stress.

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