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Optimized biotransformation of acid-treated water melon peel hydrolyzate into ethanol / Biotransformação otimizada de hidrolisado de casca de melancia tratada com ácido em etanol
Chaudhary, A; Akram, A M; Ahmad, Qurat-ul-Ain; Hussain, Z; Zahra, S; Minahal, Q; Azhar, S; Ahmad, S; Hayat, S; Javed, M A; Haider, M S; Ali, Q; Karita, S.
Affiliation
  • Chaudhary, A; University of Education, Department of Zoology. Division of Science and Technology. Lahore. PK
  • Akram, A M; University of Education, Department of Zoology. Division of Science and Technology. Lahore. PK
  • Ahmad, Qurat-ul-Ain; University of Education, Department of Zoology. Division of Science and Technology. Lahore. PK
  • Hussain, Z; University of Education, Department of Zoology. Division of Science and Technology. Lahore. PK
  • Zahra, S; University of Education. Department of Physics. Division of Science and Technology. Lahore. PK
  • Minahal, Q; University of Education, Department of Zoology. Division of Science and Technology. Lahore. PK
  • Azhar, S; University of the Punjab. Institute of Zoology. Lahore. PK
  • Ahmad, S; University of the Punjab Lahore. Department of Entomology. Lahore. PK
  • Hayat, S; The University of Lahore. Institute of Molecular Biology and Biotechnology. Lahore. PK
  • Javed, M A; University of the Punjab Lahore. Department of Plant Breeding and Genetics. Lahore. PK
  • Haider, M S; University of the Punjab Lahore. Department of Plant Pathology. Lahore. PK
  • Ali, Q; The University of Lahore. Institute of Molecular Biology and Biotechnology. Lahore. PK
  • Karita, S; Mie University. Graduate School of Bioresources. Tsu city. JP
Braz. j. biol ; 83: e253009, 2023. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1339373
Responsible library: BR1.1
ABSTRACT
Abstract Today, global focus of research is to explore the solution of energy crisis and environmental pollution. Like other agricultural countries, bulk quantities of watermelon peels (WMP) are disposed-off in environment as waste in Pakistan and appropriate management of this waste is the need of hour to save environment from pollution. The work emphasizes the role of ethanologenic yeasts to utilize significant sugars present in WMP for low-cost bioethanol fermentation. Dilute hydrochloric acid hydrolysis of WMP was carried out on optimized conditions employing RSM (response surface methodology) following central composite design (CCD). This experimental design is based on optimization of ethanologenesis involving some key independent parameters such as WMP hydrolysate and synthetic media ratio (X1), incubation temperature (X2) and incubation temperature (X3) for maximal ethanol yield exploiting standard (Saccharomyces cerevisiae K7) as well as experimental (Metchnikowia cibodasensisY34) yeasts. The results revealed that maximal ethanol yields obtained from S. cerevisiae K7 was 0.36±0.02 g/g of reducing sugars whereas M. cibodasensisY34, yielded 0.40±0.01 g ethanol/g of reducing sugars. The yeast isolate M. cibodasensisY34 appeared as promising ethanologen and embodies prospective potential for fermentative valorization of WMP-to-bioethanol.
RESUMO
Resumo Hoje, o foco global da pesquisa é explorar a solução da crise energética e da poluição ambiental. Como em outros países agrícolas, grandes quantidades de cascas de melancia (WMP) são descartadas como resíduos no meio ambiente no Paquistão, mas a gestão adequada desses resíduos é a mais recente solução para salvar o meio ambiente da poluição. O trabalho enfatiza o papel das leveduras etanologênicas para utilizar açúcares significativos presentes no WMP para fermentação de bioetanol de baixo custo. A hidrólise de ácido clorídrico diluído de WMP foi realizada em condições otimizadas empregando RSM (metodologia de superfície de resposta) e seguindo o projeto de composto central (CCD). Este projeto experimental é baseado na otimização da etanologenesis envolvendo alguns parâmetros independentes importantes, como hidrolisado de WMP e razão de meio sintético (X1), temperatura de incubação (X2) e temperatura de incubação (X3) para rendimento máximo de etanol explorando o padrão (Saccharomyces cerevisiae K7) também como leveduras experimentais (Metchnikowia cibodasensis Y34). Os resultados revelaram que os rendimentos máximos de etanol obtidos a partir de S. cerevisiae K7 foi de 0,36 ± 0,02 g / g de açúcares redutores, enquanto M. cibodasensis Y34 rendeu 0,40 ± 0,01 g de etanol / g de açúcares redutores. O isolado de levedura M. cibodasensis Y34 apareceu como um etanologeno promissor e incorpora um potencial prospectivo para a valorização fermentativa de WMP em bioetanol.
Subject(s)


Full text: Available Health context: SDG3 - Health and Well-Being Health problem: Target 3.9: Reduce the amount of deaths produced by dangerous chemicals and the pollution of the air, water and soil Database: LILACS / VETINDEX Main subject: Cucurbitaceae / Ethanol Type of study: Observational study Language: English Journal: Braz. j. biol Year: 2023 Document type: Article Institution/Affiliation country: Mie University/JP / The University of Lahore/PK / University of Education/PK / University of Education, Department of Zoology/PK / University of the Punjab Lahore/PK / University of the Punjab/PK

Full text: Available Health context: SDG3 - Health and Well-Being Health problem: Target 3.9: Reduce the amount of deaths produced by dangerous chemicals and the pollution of the air, water and soil Database: LILACS / VETINDEX Main subject: Cucurbitaceae / Ethanol Type of study: Observational study Language: English Journal: Braz. j. biol Year: 2023 Document type: Article Institution/Affiliation country: Mie University/JP / The University of Lahore/PK / University of Education/PK / University of Education, Department of Zoology/PK / University of the Punjab Lahore/PK / University of the Punjab/PK
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