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A Process Engineering Approach to Improve Production of P(3HB) by Cupriavidus necator from Used Cooking Oil
المؤلفون المشاركون
Reis, Maria A. M.
Cruz, Madalena V.
Gouveia, Ana Rosa
Dionísio, Madalena
Freitas, Filomena
المصدر
International Journal of Polymer Science
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-01-13
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Different feeding strategies, namely, exponential feeding and DO-stat mode, were implemented for the production of poly(3-hydroxybutyrate), P(3HB), by Cupriavidus necator DSM 428 with used cooking oil (UCO) as the sole carbon source.
With the exponential feeding strategy, a cell dry mass of 21.3 ± 0.9 g L−1 was obtained, with a polymer content of 84.0 ± 4.5 wt.%, giving an overall volumetric productivity of 4.5 ± 0.2 g L−1 day−1.
However, the highest P(3HB) volumetric productivity, 12.6 ± 0.8 g L−1 day−1, was obtained when the DO-stat mode was implemented together with the use of ammonium hydroxide for pH control, which served as an additional nitrogen source and allowed to reach higher cell dry mass (7.8 ± 0.6 g L−1).
The P(3HB) obtained in all experiments had a high molecular mass, ranging from 0.6 × 105 to 2.6 × 105 g mol−1, with low polydispersity indexes of 1.2-1.6.
Melting and glass transition temperatures were also similar for the polymer produced with both cultivation strategy, 174°C and 3.0-4.0°C, respectively.
The polymer exhibited a crystallinity ranging from 52 to 65%.
The DO-stat strategy to feed oil containing substrates as the sole carbon sources was reported for the first time in this study, and the preliminary results obtained show that it is a promising strategy to improve P(3HB) production.
Nevertheless, the process requires further optimization in order to make it economically viable.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cruz, Madalena V.& Gouveia, Ana Rosa& Dionísio, Madalena& Freitas, Filomena& Reis, Maria A. M.. 2019. A Process Engineering Approach to Improve Production of P(3HB) by Cupriavidus necator from Used Cooking Oil. International Journal of Polymer Science،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1167789
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cruz, Madalena V.…[et al.]. A Process Engineering Approach to Improve Production of P(3HB) by Cupriavidus necator from Used Cooking Oil. International Journal of Polymer Science No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1167789
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cruz, Madalena V.& Gouveia, Ana Rosa& Dionísio, Madalena& Freitas, Filomena& Reis, Maria A. M.. A Process Engineering Approach to Improve Production of P(3HB) by Cupriavidus necator from Used Cooking Oil. International Journal of Polymer Science. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1167789
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1167789
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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