| Title: | Impact of industrial hammer mill rotor speed on extraction efficiency and quality of extra virgin olive oil |
| Author(s): | Polari JJ; Garci-Aguirre D; Olmo-Garcia L; Carrasco-Pancorbo A; Wang SC; |
| Address: | "Department of Food Science and Technology, University of California Davis, One Shields Avenue, Davis, CA 95616, USA. Corto Olive Co., 10201 E. Live Oak Rd., Stockton, CA 95212, USA. Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Ave. Fuentenueva s/n, E-18071 Granada, Spain. Department of Food Science and Technology, University of California Davis, One Shields Avenue, Davis, CA 95616, USA; Olive Center, University of California Davis, One Shields Avenue, Davis, CA 95616, USA. Electronic address: scwang@ucdavis.edu" |
| DOI: | 10.1016/j.foodchem.2017.09.003 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "Crushing is a key step during olive oil extraction. Among commercial crushers, the hammer mill is the most widely used due to its robustness and high throughput. In the present work, the impact of hammer mill rotor speed on extraction yield and overall quality of super-high-density Arbosana olive oils were assessed in an industrial facility. Our results show that increasing the rotor speed from 2400rpm to 3600rpm led to a rise in oil yield of 1.2%, while conserving quality parameters. Sensory analysis showed more pungency with increased rotation speed, while others attributes were unaffected. Volatile compounds showed little variation with the differences in crusher speed; however, total phenols content, two relevant secoiridoids, and triterpenoids levels increased with rotor speed. Hammer mill rotor speed is a processing variable that can be tuned to increase the extraction efficiency and modulate the chemical composition of extra virgin olive oil" |
| Keywords: | Food Handling/*methods Olive Oil/*analysis Phenols/*analysis Terpenes/*analysis Volatile Organic Compounds/*analysis Extraction efficiency Hammer mill Olive oil Phenols Processing Quality Rotor speed Volatile; |
| Notes: | "MedlinePolari, Juan J Garci-Aguirre, David Olmo-Garcia, Lucia Carrasco-Pancorbo, Alegria Wang, Selina C eng England 2017/10/19 Food Chem. 2018 Mar 1; 242:362-368. doi: 10.1016/j.foodchem.2017.09.003. Epub 2017 Sep 6" |
