Fish Oil Enzymatic Esterification for Acidity Reduction

Fish Oil Enzymatic Esterification for Acidity Reduction The reduction of the fish oil acidity is a significant problem in the rendering industry, as the oil’s range of applications and market value strongly depend on this parameter. In particular, the lower the acidity, the larger the oil’s market value. This work aims to study the potential of enzymatic esterification for reducing the fish oil acidity, by converting the free fatty acids into esters. Thus, four commercial lipases were used and a parametric study was performed to identify the best operat- ing conditions, varying the reaction temperature, enzyme/oil mass ratio and alcohol/FFA mass ratio. All experiments were performed in duplicate with a very good reproducibility of results. Results showed that Lipozyme TL 100L contributed to greater acidity reduction (75% from an initial acid value of 10–14 mg KOH/g oil) for esterification at 40 °C, using ethanol 96% v/v, enzyme/oil and alcohol/FFA mass ratios of 0.01 and 3.24 w/w, respectively, reaching 3.13 mg KOH/g oil of final acid value or 1.57% FFA content. The reaction kinetics were also studied and it was found that a second order rate law as a function of the alcohol and oil concentrations is more adequate, with 35.44 kJ/mol of activation energy and 1.94 × 10 L − http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Waste and Biomass Valorization Springer Journals

Fish Oil Enzymatic Esterification for Acidity Reduction

11 pages
Read Article

Loading next page...
 
/lp/springer_journal/fish-oil-enzymatic-esterification-for-acidity-reduction-FbWd1D8MBY
Publisher site
See Article on Publisher Site

Abstract

The reduction of the fish oil acidity is a significant problem in the rendering industry, as the oil’s range of applications and market value strongly depend on this parameter. In particular, the lower the acidity, the larger the oil’s market value. This work aims to study the potential of enzymatic esterification for reducing the fish oil acidity, by converting the free fatty acids into esters. Thus, four commercial lipases were used and a parametric study was performed to identify the best operat- ing conditions, varying the reaction temperature, enzyme/oil mass ratio and alcohol/FFA mass ratio. All experiments were performed in duplicate with a very good reproducibility of results. Results showed that Lipozyme TL 100L contributed to greater acidity reduction (75% from an initial acid value of 10–14 mg KOH/g oil) for esterification at 40 °C, using ethanol 96% v/v, enzyme/oil and alcohol/FFA mass ratios of 0.01 and 3.24 w/w, respectively, reaching 3.13 mg KOH/g oil of final acid value or 1.57% FFA content. The reaction kinetics were also studied and it was found that a second order rate law as a function of the alcohol and oil concentrations is more adequate, with 35.44 kJ/mol of activation energy and 1.94 × 10 L −

Journal

Waste and Biomass Valorization – Springer Journals

Published: Jun 5, 2018

References

  • Fish oil: production and use now and in the future
    Pike, IH; Jackson, A
  • Fish oil acidity reduction by enzymatic esterification
    Mata, TM; Correia, D; Pinto, A; Andrade, S; Trovisco, I; Matos, E; Martins, AA; Caetano, NS
  • Economic and environmental analysis of animal fats acidity reduction by enzymatic esterification
    Mata, TM; Pinto, F; Caetano, N; Martins, AA
  • Enzymatic esterification for acidity reduction of poultry fat
    Mata, TM; Trovisco, I; Pinto, A; Matos, E; Martins, AA; Caetano, NS
  • Acidity reduction of mammalian fat by enzymatic esterification
    Mata, TM; Andrade, S; Correia, D; Matos, E; Martins, AA; Caetano, NS
  • Properties and sustainability of biodiesel from animal fats and fish oil
    Mata, TM; Mendes, AM; Caetano, NS; Martins, AA
  • Advanced Biofuels and Bioproducts
    Mata, TM; Martins, AA; Caetano, NS
  • New trends in energy production and utilization
    Caetano, NS; Mata, TM; Martins, AA; Felgueiras, MC
  • Bio-refinery approach for spent coffee grounds valorization
    Mata, TM; Martins, AA; Caetano, NS
  • Acidity reduction in animal fats by enzymatic esterification: economic and environmental analysis
    Martins, AA; Pinto, F; Caetano, NS; Mata, TM
  • Spent coffee grounds for biodiesel production and other applications
    Caetano, NS; Silva, VFM; Melo, AC; Martins, AA; Mata, TM
  • Utilization of acid oils in making valuable fatty products by microbial lipase technology
    Ghosh, S; Bhattacharyya, DK
  • Enzymatic catalysis of vegetable oil with ethanol in the presence of co-solvents
    Caetano, NS; Teixeira, JMI; Mata, TM
  • Valorization of spent coffee grounds: production of biodiesel via enzymatic catalysis with ethanol and a co-solvent
    Caetano, NS; Caldeira, D; Martins, AA; Mata, TM
  • Transgenic corn oil for biodiesel production via enzymatic catalysis with ethanol
    Mata, TM; Sousa, IRBG; Caetano, NS
  • Characteristics of an immobilized lipase for the commercial synthesis of esters
    Miller, C; Austin, H; Posorske, L; Gonzlez, J
  • Biodiesel production from corn oil via enzymatic catalysis with ethanol
    Mata, TM; Sousa, IRBG; Vieira, SS; Caetano, NS
  • Investigation of enzymatic biodiesel production using ionic liquid as a co-solvent
    Ruzich, NI; Bassi, AS
  • Optimisation of enzymatic esterification of soybean oil deodoriser distillate
    Facioli, NL; Barrera-Arellano, D
  • Combined nonenzymatic-enzymatic method for the synthesis of simple alkyl fatty acid esters from soapstock
    Haas, MJ; Scott, KM
  • Waste fish oil (WFO) esterification catalyzed by sulfonated activated carbon under ultrasound irradiation
    Hajamini, Z; Sobati, MA; Shahhosseini, S; Ghobadian, B
  • Lipase-catalyzed alcoholysis of sunflower oil
    Mittelbach, M
  • Lipase biocatalysis in the production of esters
    Linko, Y-Y; Lamsa, M; Huhtala, A; Rantanen, O
  • Enzymatic preparation of ricinoleic acid esters of long-chain monohydric alcohols and properties of the esters
    Ghoshray, S; Bhattacharyya, DK
  • Lipase-catalyzed transesterification in organic solvent: effects of water and solvent, thermal stability and some applications
    Hirata, H; Higuchi, K; Yamashina, T
  • Lipase-catalyzed esterification
    Gandhi, NN; Patil, NS; Sawant, SB; Joshi, JJB; Wangikar, PP; Mukesh, D
  • Water as a competitive inhibitor of lipase-catalysed esterification in organic media
    Valivety, RH; Halling, PJ; Macrae, AR
  • Ester synthesis in aqueous media by lipase: alcoholysis, esterification and substrate hydrophobicity
    Sun, J; Liu, S-Q
  • Effects of water activity on reaction rates and equilibrium positions in enzymatic esterifications
    Svensson, I; Wehtje, E; Adlercreutz, P; Mattiasson, B
  • Facile synthesis of fatty acid esters in high yields
    Bloomer, S; Adlercreutz, P; Mattiasson, B
  • Animal and Vegetable Fats and Oils—Gas Chromatography of Fatty Acid Methyl Esters—Part 2
  • Trans fatty acids in commercial cookies and biscuits: an update of Portuguese market
    Santos, LAT; Cruz, R; Casal, S
  • Animal and Vegetable Fats and Oils—Determination of Monoacylglycerols, Diacylglycerols, Triacylglycerols and Glycerol by High-Performance Size-Exclusion Chromatography (HPSEC)
  • Animal and Vegetable Fats and Oils—Determination of Unsaponifiable Matter—Method Using Diethyl Ether Extraction
  • Chemical Reaction Engineering
    Levenspiel, O
  • Fatty acid composition of soybean/sunflower mix oil, fish oil and butterfat applying the AOCS Ce 1j-07 method with a modified temperature program
    Masson, L; Alfaro, T; Camilo, C; Carvalho, A; Illesca, P; Torres, R; Tavares do Carmo, M; Mancini-Filho, J; Bernal, C
  • Fatty acid profile of fish from Central Sulawesi, Indonesia
    Minarny, G; Purnomo, H; Rosyidi, D
  • Composition in fatty acid and contribution of cholesterol of mackerel, sardine, salmon and tuna in natural fish canned
    Romero, N; Robert, P; Masson, L; Luck, C; Buchmann, L
  • Kinetics of enzymatic esterification of oleic acid and decanol for wax ester and evaluation of its physico-chemical properties
    Rani, KNP; Neeharika, TSVR; Kumar, TP; Satyavathi, B; Sailu, Ch; Prasad, RBN
  • Kinetics of enzymatic synthesis of liquid wax ester from oleic acid and oleyl alcohol
    Radzi, SM; Mohamad, R; Basri, M; Salleh, AB; Ariff, A; Rahman, MBA; R.N.Z.R.A., Rahman
  • Kinetic analysis of oleic acid esterification using lipase as catalyst in a microaqueous environment
    Mahmud, MS; Safinski, T; Nelson, MI; Sidhu, HS; Adesina, AA

You’re reading a free preview. Subscribe to read the entire article.

Try 2 weeks free now

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

or browse the journals available

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create folders to
organize your research

Export folders, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off

Sign up
for free
Start 14 day
Free Trial