The use of small diameter nozzles in temperature-controlled hemp oil extraction allows high oil yields and good quality residual hemp cake feed

Bibliographic Details
Title: The use of small diameter nozzles in temperature-controlled hemp oil extraction allows high oil yields and good quality residual hemp cake feed
Authors: Maura Sannino, Alessandro Vastolo, Salvatore Faugno, Felicia Masucci, Antonio Di Francia, Fiorella Sarubbi, Maria Eleonora Pelosi, Dieu donnè Kiatti, Francesco Serrapica
Source: Frontiers in Veterinary Science, Vol 10 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Veterinary medicine
Subject Terms: hemp seeds, oil extraction parameters, nozzle size, oil press cake composition, in vitro fermentation, Veterinary medicine, SF600-1100
More Details: The use of two nozzle diameters (6 and 8 mm) in a cold (50°C) hemp seed oil extraction process was evaluated in terms of extraction efficiency, and chemical composition and in vitro fermentation characteristics of the residual cake. Seeds of the varieties Futura 75 and Uso 31 were pressed using a mechanical press with a cooling device. Five pressings were carried out for each variety and nozzle size, the functional parameters of the extraction processes were recorded, and sample of the residual cakes (n = 20) were analyzed. The 6 mm nozzle determined a higher oil yield (+4%) with a limited increase in temperature in the pressing chamber and in the oil (on average + 3°C compared to the 8 mm nozzle). A lower oil yield and consequently a higher fat content in the corresponding cake was observed when using the 8 mm nozzle. Despite the similar fat content, the two varieties had different oil yields and different residual cake compositions. The gas production kinetic of cakes was influenced by variety but little by nozzle size. Overall, the use of a smaller nozzle in a temperature-controlled extraction process can be a useful option to increase hemp oil yield while maintaining good fermentation characteristics of the residual cakes as ruminant feed.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2297-1769
Relation: https://www.frontiersin.org/articles/10.3389/fvets.2023.1322637/full; https://doaj.org/toc/2297-1769
DOI: 10.3389/fvets.2023.1322637
Access URL: https://doaj.org/article/9bb60175edef4ad9accf99c7b0800fcb
Accession Number: edsdoj.9bb60175edef4ad9accf99c7b0800fcb
Database: Directory of Open Access Journals
More Details
ISSN:22971769
DOI:10.3389/fvets.2023.1322637
Published in:Frontiers in Veterinary Science
Language:English