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Pinheiro UV, Wancura JHC, Brondani M, da Silva CM, Mainardi MA, Gai RM, Jahn SL. Production of Gibberellic Acid by Solid-State Fermentation Using Wastes from Rice Processing and Brewing Industry. Appl Biochem Biotechnol 2024; 196:1493-1508. [PMID: 37428388 DOI: 10.1007/s12010-023-04637-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2023] [Indexed: 07/11/2023]
Abstract
Gibberellic acid (GA3) is a natural hormone present in some plants used in agricultural formulations as a growth regulator. Currently, its production on an industrial scale is performed by submerged fermentation using the fungus Gibberella fujikuroi, which is associated with low yields, leaving the purification stages with high costs. An alternative is solid-state fermentation (SSF), which makes it possible to obtain higher concentrations of product using low-cost substrates, such as agroindustrial by-products. This research investigated the use of raw rice bran (RRB) and barley malt residue (BMR) as substrates for GA3 production by the fungus Gibberella fujikuroi. Through two statistical designs, the effect of moisture (50 to 70 wt.%) and medium composition (RRB content between 30 and 70 wt.% to a mass ratio between RRB and BMR) was first evaluated. Using the best conditions previously obtained, the effect of adding glucose (carbon source, between 0 and 80 g·L-1) and ammonium nitrate-NH4NO3-(nitrogen source, between 0 and 5 g·L-1) on GA3 productivity was analyzed. The best yield was obtained using 30 wt.% RRB and 70 wt.% BMR for a medium with 70 wt.% of moisture after 7 days of process. It was also found that higher concentrations of NH4NO3 favor the GA3 formation for intermediate values of glucose content (40 g·L-1). Finally, a kinetic investigation showed an increasing behavior in the GA3 production (10.1 g·kg of substrate-1 was obtained), with a peak on the seventh day and subsequent tendency to stabilization.
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Affiliation(s)
- Upiragibe V Pinheiro
- Pro-Rectory of Infrastructure, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - João H C Wancura
- Department of Chemical Engineering, Federal University of Santa Maria, Roraima Avenue, Building 9B, Santa Maria, RS, 97105-900, Brazil.
| | - Michel Brondani
- Department of Chemical Engineering, Federal University of Santa Maria, Roraima Avenue, Building 9B, Santa Maria, RS, 97105-900, Brazil
| | - Camila M da Silva
- Department of Chemical Engineering, Federal University of Santa Maria, Roraima Avenue, Building 9B, Santa Maria, RS, 97105-900, Brazil
| | - Marco A Mainardi
- Department of Chemical Engineering, Federal University of Santa Maria, Roraima Avenue, Building 9B, Santa Maria, RS, 97105-900, Brazil
| | - Rafaela M Gai
- Pro-Rectory of Infrastructure, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sérgio L Jahn
- Department of Chemical Engineering, Federal University of Santa Maria, Roraima Avenue, Building 9B, Santa Maria, RS, 97105-900, Brazil
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Shi TQ, Shen YH, Li YW, Huang ZY, Nie ZK, Ye C, Wang YT, Guo Q. Improving the productivity of gibberellic acid by combining small-molecule compounds-based targeting technology and transcriptomics analysis in Fusarium fujikuroi. BIORESOURCE TECHNOLOGY 2024; 394:130299. [PMID: 38185446 DOI: 10.1016/j.biortech.2024.130299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
Gibberellic acid (GA3), produced industrially by Fusarium fujikuroi, stands as a crucial plant growth regulator extensively employed in the agriculture filed while limited understanding of the global metabolic network hinders researchers from conducting rapid targeted modifications. In this study, a small-molecule compounds-based targeting technology was developed to increase GA3 production. Firstly, various small molecules were used to target key nodes of different pathways and the result displayed that supplement of terbinafine improved significantly GA3 accumulation, which reached to 1.08 g/L. Subsequently, lipid and squalene biosynthesis pathway were identified as the key pathways influencing GA3 biosynthesis by transcriptomic analysis. Thus, the strategies including in vivo metabolic engineering modification and in vitro supplementation of lipid substrates were adopted, both contributed to an enhanced GA3 yield. Finally, the engineered strain demonstrated the ability to achieve a GA3 yield of 3.24 g/L in 5 L bioreactor when utilizing WCO as carbon source and feed.
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Affiliation(s)
- Tian-Qiong Shi
- College of Food Science and Technology, Nanchang University, 999 Xuefu Road, Nancang 330031, China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China; Jiangxi New Reyphon Biochemical Co., Ltd., Salt and Chemical Industry, Xingan, China
| | - Yi-Hang Shen
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China
| | - Ya-Wen Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China
| | - Zi-Yi Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China
| | - Zhi-Kui Nie
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China; Jiangxi New Reyphon Biochemical Co., Ltd., Salt and Chemical Industry, Xingan, China
| | - Chao Ye
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China; Ministry of Education Key Laboratory of NSLSCS, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China
| | - Yue-Tong Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China
| | - Qi Guo
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing 210023, China.
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Ghosh N, De J, Chowdhury AR. Shelf life enhancement technique of Musa acuminata in a controlled environment and optimization of process parameters affecting shelf life using genetic algorithm. J Food Sci 2024; 89:390-403. [PMID: 38010746 DOI: 10.1111/1750-3841.16811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/27/2023] [Accepted: 10/05/2023] [Indexed: 11/29/2023]
Abstract
An economical and effective storage solution has been designed in this work for the storage of postharvest fruits and vegetables. Musa acuminata or banana has a shelf life of 5-6 days in open uncontrolled environment. This article reports a storage solution of M. acuminata in a controlled enclosure containing titanium oxide (TiO2 )-coated inner walls and irradiated with ultraviolet ray of band "C," an air filtration unit, 5% by volume potassium permanganate (KMnO4 ) solution in a clay pot, grow lights, and activated charcoal granules. The same fruit was kept in an uncontrolled environment too. The percentages of dark spots on banana (M. acuminata) upon storage in controlled and uncontrolled environments have been estimated using an image-processing algorithm. The prediction of dark spots was conducted using multi-linear and multivariate polynomial regression. Experimentation with optimum process parameters obtained with genetic algorithm resulted in a shelf life extension of 6 days as compared to its storage in an uncontrolled environment. The setup can be used in vegetable and fruit markets for the extension of shelf life of postharvest perishable items in a compact and cost-effective manner. The setup does not use any refrigeration process thereby decreasing energy requirement.
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Affiliation(s)
- Niloy Ghosh
- Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India
| | - Jhumpa De
- Mechanical Engineering Department, Academy of Technology, Adisaptagram, India
| | - Amit Roy Chowdhury
- Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India
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Nayab DE, Akhtar S. Green synthesized silver nanoparticles from eucalyptus leaves can enhance shelf life of banana without penetrating in pulp. PLoS One 2023; 18:e0281675. [PMID: 36888584 PMCID: PMC9994744 DOI: 10.1371/journal.pone.0281675] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/29/2023] [Indexed: 03/09/2023] Open
Abstract
Bananas are exposed to serious post-harvest problems resulting in agricultural and economic losses across the world. The severity of problem is linked with the process of rapid ripening and pathogens attack. Such problems have led to economic losses as well as a lower yield of nutritionally rich bananas. The global demand to increase the life span of bananas and their protection from pathogens-borne diseases urged the use of antimicrobial edible coatings of nanoparticles. The present experiment has explored the innovative development of green synthesized nanoparticles from Eucalyptus leaf extract (ELE) to increase the shelf life of bananas up to 32 days from the day of collection. Statistically significant results were recorded (P = 0.05) by applying five different concentrations of silver nanoparticles (AgNPs) in ranges of 0.01-0.05%. Various morphological and physiological parameters such as color, decay, firmness, weight loss, pulp to peel ratio, pH, titrable acidity (TA), phenolic contents, protein estimation, ethylene production, starch content and total soluble sugars were measured in Cavendish banana (Basrai). Bananas treated with 0.01% AgNPs showed maximum control on its ripeness over morphological and physiological changes. The increase in shelf life was in order 0.01%>0.02%>0.03%>0.04%>0.05%> control. Further, AgNPs reduced the process of ripening by controlling ethylene production. The result has also proved the safety of banana consumption by simple removal of banana peel as penetration of AgNPs from the peel to the pulp was not detected. It is recommended to use 0.01% AgNPs to enhance the shelf life of banana without effecting its nutritive value.
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Affiliation(s)
- Durr-e- Nayab
- Department of Botany, University of Gujrat, Gujrat, Pakistan
| | - Shamim Akhtar
- Department of Botany, University of Gujrat, Gujrat, Pakistan
- * E-mail:
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