Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant : Optimization and Physicochemical Characteristics

المؤلفون المشاركون

Abdullah, Bashar Mudhaffar
Salimon, Jumat
Salih, Nadia

المصدر

Journal of Biomedicine and Biotechnology

العدد

المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-11، 11ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2012-01-19

دولة النشر

مصر

عدد الصفحات

11

التخصصات الرئيسية

الطب البشري

الملخص EN

Linoleic acid (LA) is converted to per-carboxylic acid catalyzed by an immobilized lipase from Candida antarctica (Novozym 435).

This per-carboxylic acid is only intermediate and epoxidized itself in good yields and almost without consecutive reactions.

Monoepoxide linoleic acid 9(12)-10(13)-monoepoxy 12(9)-octadecanoic acid (MEOA) was optimized using D-optimal design.

At optimum conditions, higher yield% (82.14) and medium oxirane oxygen content (OOC) (4.91%) of MEOA were predicted at 15 μL of H2O2, 120 mg of Novozym 435, and 7 h of reaction time.

In order to develop better-quality biolubricants, pour point (PP), flash point (FP), viscosity index (VI), and oxidative stability (OT) were determined for LA and MEOA.

The results showed that MEOA exhibited good low-temperature behavior with PP of −41°C.

FP of MEOA increased to 128°C comparing with 115°C of LA.

In a similar fashion, VI for LA was 224 generally several hundred centistokes (cSt) more viscous than MEOA 130.8.

The ability of a substance to resist oxidative degradation is another important property for biolubricants.

Therefore, LA and MEOA were screened to measure their OT which was observed at 189 and 168°C, respectively.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Salimon, Jumat& Salih, Nadia& Abdullah, Bashar Mudhaffar. 2012. Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant : Optimization and Physicochemical Characteristics. Journal of Biomedicine and Biotechnology،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-491133

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Salimon, Jumat…[et al.]. Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant : Optimization and Physicochemical Characteristics. Journal of Biomedicine and Biotechnology No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-491133

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Salimon, Jumat& Salih, Nadia& Abdullah, Bashar Mudhaffar. Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant : Optimization and Physicochemical Characteristics. Journal of Biomedicine and Biotechnology. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-491133

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-491133