Energy and environmental assessments of bioethanol production from Sri Kanji 1 cassava in Malaysia

Hanif, Muhammad; Mahlia, T.M.I.; Aditiya, H. B.; Bakar, Muhammad Saifullah Abu

doi:10.18331/brj2017.4.1.3

Cited by 31 publications

(16 citation statements)

References 18 publications

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“…Ethanol is utilized in the fuel, food, pharmaceutical and cosmetics industries but its usage as a perfect fuel or in combination with gasoline is increasing [5]. Ethanol fermentation process that is known as alcoholic fermentation, is a biologic process that leads to consume sugars like glucose, fructose or sucrose, and produces the molecule of ethanol as output [6].…”

Section: Introductionmentioning

confidence: 99%

The Study of the influence of various factors on the ethanol production by the Hanseniaspora opuntiae

Keshtkar¹,

Мезенова²,

Hosseini³

et al. 2019

Journal IAR

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The amount of ethanol production in fermentation process, depends on environmental factors. In order to study the influential factors in producing ethanol by strain of Hanseniaspora opuntiae, the amount of ethanol production was measured in YPD culture medium (1 % yeast extract, 2 % peptone, 2 % glucose, in distilled water) at different temperature and pH and also in the presence of specific volume of different carbon sources including glucose, sucrose, fructose syrup, glucose syrup, molasses and whey, and different nitrogen sources such as ammonium phosphate, ammonium sulfate, industrial urea, ammonium nitrate, peptone and amine-chloride. In order to optimize the conditions of ethanol production and to gain maximum production rate by yeast strain, test design method with Response Surface Method was used, aiming at achieving better results, significant decrease in the number of tests and optimizing production conditions. Using the Placket-Burman option of Minitab © software, effectual factors were screened with. To determine the amount of ethanol produced used HPLC technique. The results showed that among the measured factors, nitrogen source has the most effects in producing ethanol by studied strain and the minimum effect was related to ph. Also, among the carbon sources, the highest production occurred in the presence of sucrose and molasses, and among nitrogen supplies the best performance in producing ethanol occurred with peptone and ammonium nitrate.

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Section: Introductionmentioning

confidence: 99%

The Study of the influence of various factors on the ethanol production by the Hanseniaspora opuntiae

Keshtkar¹,

Мезенова²,

Hosseini³

et al. 2019

Journal IAR

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“…Bioethanol is generally produced by liquefaction and saccharification of starch using alfa-amylase and glucoamylase enzymes. The sugar slurry undergoes fermentation process by bacteria, yeast, or other fermenting microorganisms (Hanif et al 2017). Various researches have been carried out for producing ethanol from several biomasses include micro and macroalgae (John et al 2011), molasses (Wardani and Pertiwi (2013); Shamim et al 2016), palm juice of Cocos nucifera (Saputra et al 2012); palm juice of Nypa (Yenti 2013;Muhammad et al 2016), Palm juice of Borassus flabellifer (Naknean et al 2010) and Sargassum (Saputra et al2012;Borines et al 2013;Widyaningrum et al 2016) previous studies utilizing Saccharomyces cerevisiae to ferment of molasse and micro and macroalgae were produced ethanol 2.71-94.0 % (John et al 2011;Riyanti 2011;Wardani and Pertiwi 2013).…”

Section: Introductionmentioning

confidence: 99%

Diversity and potency of indigenous yeast from some palm juices for bioethanol production

et al. 2019

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Abstract. Widyaningrum T, Suharjono S, Ardyati T, Aulanni’am A. 2020. Diversity and potency of indigenous yeast from some palm juices for bioethanol production. Biodiversitas 21: 318-325. Main energy source commonly used by the community comes from fossil energy, especially petroleum. The crisis of energy showed that Indonesia's fossil energy reserves are limited. Based on this fact it is important to develop alternative energy that environmentally friendly and sustain, especially bioethanol. The objective of this research was to diversity and potency of indigenous yeast from palm juice of Arenga pinnata Merr., Cocos nucifera L., Nypa fruticans Wurmb., and Borassus flabellifer L. for bioethanol production. Yeast from juice of the four species of palm was isolated using Yeast Malt Extract Agar (YMEA). Those isolates were screen base on ethanol production in coconut water media. The potential of yeast isolates was identified base on 18S DNA sequence similarity. The four potential isolates of yeast were A3A from A. pinnata, K1A from C. nucifera, N3E from N. fruticans, and S1A from B. flabellifer have highest production of ethanol are 8.6 %, 14.2 %, 9.0 %, and 9.2 % respectively. Four potential isolates of yeast were A3A and N3E, K1A, and S1A have relationship with Saccharomyces cerevisiae NRRL Y-12632T, Pichia manshurica IFO 10726T, and Candida tropicalis ATCC 20615 respectively.

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“…In the production of biodiesel, TAGs are indispensable as raw material (Vincent et al 2014;Hanif et al 2017). Currently, approximately 70 to 75% of global biodiesel is produced from vegetable oils such as palm oil and soybean oil, animal fat as well as waste cooking oil (Li et al 2011;Tremblay and Montpetit 2017).…”

Section: Introductionmentioning

confidence: 99%

Isolation, identification and diversity of oleaginous yeasts from Kuching, Sarawak, Malaysia

Vincent¹,

Hung²,

Baran³

et al. 2018

Biodiversitas

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Vincent M, Hung MC, Baran PRM, Azahari AS, Adeni DSA. 2018. Isolation, identification and diversity of oleaginous yeastsfrom Kuching, Sarawak, Malaysia. Biodiversitas 19: 1266-1272. The present study was performed to isolate, identify and determine thediversity of oleaginous yeasts from various sources in Kuching, Sarawak (Malaysia). Microscopic observations via light and scanningelectron microscope (SEM) indicated that the yeast isolates were in sizes ranging from 2-3 μm in width and 4-8 μm in length, typical ofmost unicellular ascomycotic fungi. Polymerase Chain Reaction (PCR) and molecular identification performed on the yeast isolates,targeting the D1/D2 region of the 26S rDNA, identified 6 yeast species from the 21 isolates, namely Pichia manshurica (5/21), Candidakrusei (8/21), Candida parapsilosis (1/21), Pichia guilliermondii (2/21), Clavispora lusitaniae (1/21) and Kluyveromyces marxianus(4/21). All 21 yeast isolates accumulated intracellular lipids when grown in nitrogen-limited medium, as tested via Sudan IV staining.The present study is the first to document the production of lipids bodies in C. krusei, C. parapsilosis, and C. lusitaniae. Furtherinvestigations to assess the growth kinetics, lipid production efficiencies and lipids profiles of these oleaginous yeasts may provideinsights into the possible utilization of these isolates for a variety of scientific, technical and industrial applications.

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Energy and environmental assessments of bioethanol production from Sri Kanji 1 cassava in Malaysia

Cited by 31 publications

References 18 publications

The Study of the influence of various factors on the ethanol production by the Hanseniaspora opuntiae

The Study of the influence of various factors on the ethanol production by the Hanseniaspora opuntiae

Diversity and potency of indigenous yeast from some palm juices for bioethanol production

Isolation, identification and diversity of oleaginous yeasts from Kuching, Sarawak, Malaysia

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