Scholarly record
SUCCESSIVE TRANSESTERIFICATION OF 2,5-DIACETYL - ISOSORBIDE IN TWO STAGES WITH HYDROCARBON CHAIN IN THE PROCESS FOR OBTAINING OF D-GLUCITOL
Abstract
Polysorbates as hydrophilic surface-active structures are food additives with multifunctional competences (emulsifiers, aerating, wetting, foaming, stabilizing agents) and wide HLB range. The present paper has proposed to know the details of the successive transesterification of 2,5 пїЅ diacetyl пїЅ isosorbide (2,5- Ac2ISB) with hydrocarbon chains (Ra) by successive introducing the different amounts of fatty acids obtained from the vegetal lipid fractions isolated from sweet pepper (Capsicum annuum) and chilli pepper (Capsicum frutescens). This process of transesterification is one of a new range of sequestering food polysorbates type. Also the paper presents the structure and the main physico-chemical characteristics of 2,5-diacetyl-isosorbides processed from vegetable lipid fractions (Rai-chilli pepper (Capsicum frutescens); Rad пїЅ sweet pepper (Capsicum annuum). Transesterification of 2,5-diacetyl пїЅ isosorbide with hydrocarbon chains (Ra) is carried out successively in both positions (2,5) of isosorbide acetylated. This present paper is investigating the dependence of duration (15-90 minutes) and temperature (120-160пїЅC) of esterification index in transesterification process of 2,5 Ac-ISB in 2,5 (Rai, Rad) ISB. Also in this paper, the experimental data obtained were mathematically processed using the estimation of linear, parabolic, logarithmic and exponential regression.
Publication Impact Profile
Publication details
References8
Cocan I., Negrea M.V., Jianu I.V., Study of the partial and exhaustive intramolecular dehydration of D-sorbitol, Journal of Agroalimentary Processes and Technologies, vol. 19, pp. 259-270, 2013.
Cocan I., Chemical and physicochemical characterization of vegetal lipid fractions isolated from sweet pepper (Capsicum annuum) and chilli pepper (Capsicum frutescens), Research Journal of Agricultural Science, vol. 47, pp. 30-34, 2015.
Negrea I., Homogeneous Polyethoxylated Sorbitols, PhD thesis, Banat’s University of Agriculture Sciences and Veterinary Medicine from Timișoara, 2011.
Schuchardt U., Sercheli R., Vargas R.M., Transesterification of Vegetable Oils: a Review, J. Braz. Chem. Soc. Vol. 9/No. 1, pp. 199-210, 1998.
M. Verziu, S.M. Coman, R. Richards, V.I. Pârvulescu, Transesterification of vegetable oils over CaO catalysts, Catalysis Today, vol. 167, pp. 64–70, 2011.
Kadu S.P., Sarda R.H., Use of vegetable oils by transesterification method as C.I. engines fuels: a technical review, Journal of Engineering Research and Studies, vol. II/ issue III, pp. 19-26, 2011.
Rehberg C.E., Fisher C.H., Preparation and Properties of the n-Alkyl Acrylates, J. Am. Chem. Soc., vol. 66/issue 7, pp. 1203-1207, 1944.
Jianu C., Cocan I., Cazacu M., Rinovetz A., Jianu I., Biofuels produced by transesterification of oil extracted from acorns, Current Opinion in Biotechnology, vol. 24/issue 1, pp. S139-S139, 2013.
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
