Biodiesel production from aquatic vegetation

Fernando, Mercy Nimal; Ranganathan, Kannan

doi:10.4038/vingnanam.v15i2.4174

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…They may involve family members in module production (Sornito, 2020). Despite other responsibilities, teachers work independently on module production (Fernando, 2020;Jones, 2018).…”

Section: Production Of Modulesmentioning

confidence: 99%

Challenges in Using Modular Approach in Mathematics to Senior Students in Zambales Philippines

Alegre,

Falle

2023

EAJMR

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The study aimed to identify challenges faced by Grade 11 Senior High School students in using a modular approach for learning Mathematics in the San Felipe District, Division of Zambales, during the school year 2020–2021. A descriptive research design was employed, and data was collected through a questionnaire from 144 randomly selected student respondents. The findings revealed that the student respondents were typically female teenagers, with fathers working as farmers and mothers as housekeepers. The students rated the challenges of using the modular learning approach as "challenging" in terms of Subject Matter Content, Delivery and Retrieval, and Family Support. The researcher recommended implementing interventions to alleviate challenges among students, parents, teachers, and school administrators. Suggestions included promoting collaborative learning among neighbors, forming subject area expert committees to review module content, managing time effectively, ensuring clear and visual module materials, incorporating relevant activities, and conducting further studies to validate the findings.

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“…They may involve family members in module production (Sornito, 2020). Despite other responsibilities, teachers work independently on module production (Fernando, 2020;Jones, 2018).…”

Section: Production Of Modulesmentioning

confidence: 99%

Challenges in Using Modular Approach in Mathematics to Senior Students in Zambales Philippines

Alegre,

Falle

2023

EAJMR

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“…Various microorganisms have been utilized as biocatalysts for bioethanol production from biomass (Yu et al, 2009). The widely used microorganism for household and industrial bioethanol production is Saccharomyces cerevisiae (Fernando and Kapilan, 2020). Various environmental factors affect the growth of Saccharomyces cerevisiae cells and the enzymatic chemical reactions within them, such as fermentation time, temperature, agitation rate, and inoculum concentration (Kapilan, 2015).…”

Section: Introductionmentioning

confidence: 99%

Enhancing Bioethanol Production from Azolla filiculoides through Optimization of Pretreatment and Culture Conditions with Saccharomyces cerevisiae

Christy,

Wickramasinghe,

Kapilan

et al. 2024

J Agric Sciences

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Purpose: Increasing human population and extreme consumption of fossil fuels create a potential to generate alternative energy sources. Bioethanol is a renewable energy resource for fossil fuels and it can be produced from low-cost raw material. This study was aimed to convert the low-value freshwater flora into high-value bioethanol using Saccharomyces cerevisiae and to optimize the conditions for yield enhancement with the Azolla filiculoides substrate.Research Method: The freshwater flora was collected, cleaned, dried and then pre-treated with 1 M H2SO4 solution at 121 0C for 15 min. The flora with significantly higher yields of reducing sugar and alcohol was chosen for further research. Three pre-treatment techniques, including acid (1 M H2SO4), enzymatic (1% α-amylase), and a combination of both (1 M H2SO4 and 1% α-amylase) were applied to the selected substrate. The technique that resulted in a significantly higher reducing sugar and alcohol yield was chosen.Findings: The study revealed that Azolla filiculoides substrate produced significantly higher alcohol yield with Saccharomyces cerevisiae using combination of chemical and enzymatic pre-treatment technique. When fermentation was done at varying H2SO4 concentration (0.50-1.75 M), fermentation time (12-60 h), temperature (20-450C), rotation speed (50- 250 rpm) and inoculum concentration (25-150 g/L), and significantly higher alcohol yield (19 times than the non-optimized) was obtained after 36 h, at 40 0C and 0.75 M H2SO4 concentration with an inoculum concentration of 75 g/L at 200 rpm.Originality/ Value: The study concluded that Azolla filiculoides can be used as an efficient raw material for alcohol production.

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“…In the production of bioethanol, these microorganisms play a crucial role by fermenting sugars into ethanol. The widely used microorganism for household and industrial bioethanol production is S. cerevisiae (Fernando and Kapilan, 2020). Various environmental factors affect the growth of S. cerevisiae cells and the enzymatic chemical reactions within them, such as fermentation time, temperature, agitation rate, and inoculum concentration (Kapilan, 2015).…”

Section: Introductionmentioning

confidence: 99%

Optimization of pre-treatment and culture conditions for bioethanol yield enhancement from Azolla filiculoides substrate using Saccharomyces cerevisiae

Christy,

Kapilan,

Wickramasinghe

et al. 2023

J. Dry Zone Agric.

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Increasing human population and extreme consumption of fossil fuels create the potential to generate alternative energy sources. Bioethanol is an alternative and renewable energy resource for fossil fuels, which can be generated from low-cost raw materials. The objective of the study is to optimize pretreatment and culture conditions to enhance bioethanol production from Azolla filiculoides substrate using Saccharomyces cerevisiae. The A. filiculoides was collected from fresh-water ponds, cleaned, dried, milled to fine powder and then autoclaved for 15 min at 121 ℃. When A. filiculoides substrate was pre-treated with different acids and alkaline separately and alcohol production was monitored, significantly higher alcohol (0.1%) was produced with 1 M H2SO4, thus it was selected as the best pre-treatment agent.

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Biodiesel production from aquatic vegetation

Cited by 5 publications

References 20 publications

Challenges in Using Modular Approach in Mathematics to Senior Students in Zambales Philippines

Challenges in Using Modular Approach in Mathematics to Senior Students in Zambales Philippines

Enhancing Bioethanol Production from <em>Azolla filiculoides</em> through Optimization of Pretreatment and Culture Conditions with <em>Saccharomyces cerevisiae</em>

Optimization of pre-treatment and culture conditions for bioethanol yield enhancement from <em>Azolla filiculoides</em> substrate using <em>Saccharomyces cerevisiae</em>

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