| Title: | Multivariate approaches for stability control of the olive oil reference materials for sensory analysis - part II: applications |
| Author(s): | Valverde-Som L; Ruiz-Samblas C; Rodriguez-Garcia FP; Cuadros-Rodriguez L; |
| Address: | "Department of Analytical Chemistry, Faculty of Science, University of Granada, Granada, Spain. Agricultural and Fishery Research Institute (IFAPA) Consejeria de Agricultura, Pesca y Desarrollo Rural, Junta de Andalucia, Sevilla, Spain" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: The organoleptic quality of virgin olive oil depends on positive and negative sensory attributes. These attributes are related to volatile organic compounds and phenolic compounds that represent the aroma and taste (flavour) of the virgin olive oil. The flavour is the characteristic that can be measured by a taster panel. However, as for any analytical measuring device, the tasters, individually, and the panel, as a whole, should be harmonized and validated and proper olive oil standards are needed. RESULTS: In the present study, multivariate approaches are put into practice in addition to the rules to build a multivariate control chart from chromatographic volatile fingerprinting and chemometrics. Fingerprinting techniques provide analytical information without identify and quantify the analytes. This methodology is used to monitor the stability of sensory reference materials. CONCLUSION: The similarity indices have been calculated to build multivariate control chart with two olive oils certified reference materials that have been used as examples to monitor their stabilities. This methodology with chromatographic data could be applied in parallel with the 'panel test' sensory method to reduce the work of sensory analysis. (c) 2018 Society of Chemical Industry" |
| Keywords: | Chromatography/*standards/statistics & numerical data Flavoring Agents/*chemistry Humans *Multivariate Analysis Olive Oil/analysis/*chemistry Taste Volatile Organic Compounds/*chemistry Pca distances monitoring multivariate control chart similarity analys; |
| Notes: | "MedlineValverde-Som, Lucia Ruiz-Samblas, Cristina Rodriguez-Garcia, Francisco P Cuadros-Rodriguez, Luis eng England 2018/02/10 J Sci Food Agric. 2018 Aug; 98(11):4245-4252. doi: 10.1002/jsfa.8946. Epub 2018 Mar 25" |
