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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Journal of Cleaner P...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Journal of Cleaner Production
Article . 2018 . Peer-reviewed
License: Elsevier TDM
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Pistachio (Pistachia vera) wastes valorization: Enhancement of biodiesel oxidation stability using hull extracts of different varieties

Authors: Meisam Tabatabaei; Keramatollah Rezaei; Zahra Khounani; Mitra Ahanchi; Benyamin Khoshnevisan; Akram Ghaffari; Mortaza Aghbashlo; +1 Authors

Pistachio (Pistachia vera) wastes valorization: Enhancement of biodiesel oxidation stability using hull extracts of different varieties

Abstract

Abstract Biodiesel degradation through autoxidation radical chain reactions adversely affects long-term storage stability, high thermal oxidation stability, and consequently biodiesel consumers’ acceptance. Propyl gallate, the most promising synthetic antioxidant, is widely used to address this challenge. However, the application of this synthetic antioxidant is associated with health concerns such as risk of brain tumors as proposed by the National Toxicology Program (U.S. Department of Health and Human Services). Herein, the application of a naturally-originated alternative to propyl gallate, i.e., pistachio hull extract in canola biodiesel was investigated from technical and environmental viewpoints. According to the results achieved, a concentration of 2500 ppm of the bio-antioxidant and 250 ppm of the synthetic antioxidant was needed to improve the induction period of the investigated biodiesel from 1.53 h to above 3 h as required by ASTM D6751-12 specification for biodiesel oxidation stability. In spite of the fact that the higher concentration of the bio-antioxidant was required, its application would be justified by the probable health hazards of its synthetic counterparts. On the other hand, 23% of the global biodiesel production takes place in top pistachio producing countries where a huge amount of pistachio fresh hulls are generated. Therefore, valorization of this considerable agro-waste stream into a natural antioxidant, i.e., pistachio hull extract, seems to be a promising strategy to enhance the favorable environmental and health aspects of biodiesel. In addition, life cycle assessment revealed that the production and application of the bio-antioxidant were favorable from the climate change and human health perspectives compared with propyl gallate.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
45
Top 10%
Top 10%
Top 10%
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