Influence of Prolonged Deep‐Frying Using Various Oils on Volatile Compounds Formation of French Fries Using GC–MS , GC‐O, and Sensory Evaluation

2021 ◽  
Author(s):  
Lirong Xu ◽  
Gangcheng Wu ◽  
Xin Ji ◽  
Hui Zhang ◽  
Qingzhe Jin ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Sensory Evaluation ◽  
French Fries ◽  
Deep Frying

Chemical and sensory assessment of deep-frying oil alternatives for the processing of French fries

2013 ◽  
Vol 115 (8) ◽  
pp. 935-945 ◽  
Author(s):  
Katharina Domitila Petersen ◽  
Gerhard Jahreis ◽  
Mechthild Busch-Stockfisch ◽  
Jan Fritsche
Keyword(s):  
Frying Oil ◽  
French Fries ◽  
Deep Frying ◽  
Sensory Assessment

Chemical and physical analyses and sensory evaluation of six deep-frying oils

1999 ◽  
Vol 76 (9) ◽  
pp. 1091-1099 ◽  
Author(s):  
Xin-Qing Xu ◽  
Viet Hung Tran ◽  
Martin Palmer ◽  
Keith White ◽  
Philip Salisbury
Keyword(s):  
Sensory Evaluation ◽  
Deep Frying ◽  
Frying Oils

scholarly journals Sensory Quality Evaluation of Korla Pear from Different Orchards and Analysis of Their Primary and Volatile Metabolites

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5567
Author(s):  
Yuan Liu ◽  
Simin Xiang ◽  
Haipeng Zhang ◽  
Hongyan Zhang ◽  
Cuiyun Wu ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Tartaric Acid ◽  
Sensory Evaluation ◽  
Sensory Quality ◽  
Fruit Size ◽  
Fruit Shape ◽  
Gas Chromatography Mass Spectrometry ◽  
Pear Fruit ◽  
Primary Metabolites ◽  
Mouth Feel

Metabolites play vital roles in shaping the quality of fresh fruit. In this study, Korla pear fruit harvested from twelve orchards in South Xinjiang, China, were ranked in sensory quality by fuzzy logic sensory evaluation for two consecutive seasons. Then, gas chromatography-mass spectrometry (GC-MS) was applied to determine the primary metabolites and volatile compounds. Sensory evaluation results showed that the panelists were more concerned about ‘mouth feel’ and ‘aroma’ than about ‘fruit size’, ‘fruit shape’ and ‘peel color’. In total, 20 primary metabolites and 100 volatiles were detected in the pear fruit. Hexanal, (E)-2-hexenal, nonanal, d-limonene, (Z)-3-hexen-1-yl acetate and hexyl acetate were identified as the major volatile compounds. Correlation analysis revealed that l-(+)-tartaric acid, hexanoic acid, trans-limonene oxide and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate were negatively correlated with sensory scores. Furthermore, OPLS-DA results indicated that the fruit from three orchards with lower ranks in quality could be distinguished from other samples based on the contents of l-(+)-tartaric acid and other eight metabolites, which were all associated with ‘mouth feel’ and ‘aroma’. This study reveals the metabolites that might be closely associated with the sensory quality attributes of Korla pear, which may provide some clues for promoting the fruit quality in actual production.

scholarly journals Changes in Aroma Profile of Shiitake Mushroom (Lentinus edodes) during Different Stages of Hot Air Drying

Foods ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 444 ◽  
Author(s):  
Lei Qin ◽  
Jing-Xuan Gao ◽  
Jia Xue ◽  
Dong Chen ◽  
Song-Yi Lin ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Sensory Evaluation ◽  
Early Stage ◽  
Organosulfur Compounds ◽  
Lentinus Edodes ◽  
Drying Process ◽  
Shiitake Mushroom ◽  
Hot Air Drying ◽  
Air Drying ◽  
Hot Air

To clarify the changes in the aroma characteristics of shiitake mushrooms (Lentinus edodes) during hot-air drying, volatile compounds of L. edodes were analyzed using sensory evaluation, electronic nose, and purge and trap combined with gas chromatography-mass spectrometry (PT-GC-MS) at different timepoints of the drying process. Results showed that the sensory and volatile profile changed significantly during the drying process at 60 °C for up to 12 h and the drying process could be divided into three stages: early stage (<2 h), middle stage (2–3.5 h) and late stage (>3.5 h). Volatile compounds in fresh L. edodes consisted mainly of ketones and alcohols. The early stage of drying decreased the concentration of ketone and alcohol compounds and promoted the generation of cyclic organosulfur compounds through a series of enzymatic and non-enzymatic reactions, which mainly contribute to the characteristic odor of shiitake mushroom. Partial least squares-discriminant analysis (PLS-DA) showed that the volatile compounds released after different drying times could be divided into four groups, which have been confirmed by sensory evaluation results. The results suggested that the unique flavor of dried mushrooms is mainly due to the activation of enzymes during the drying process, which act on lentinic acid to produce sulfur-containing heterocyclic compounds. We believe that our study makes a potential contribution to the mushroom cultivation and processing industry to achieve an improvement in sensory quality.

Study of volatile compounds of defective virgin olive oils and sensory evaluation: a chemometric approach

2005 ◽  
Vol 85 (13) ◽  
pp. 2175-2183 ◽  
Author(s):  
Giuseppe Procida ◽  
Andrea Giomo ◽  
Angelo Cichelli ◽  
Lanfranco S Conte
Keyword(s):  
Volatile Compounds ◽  
Sensory Evaluation ◽  
Virgin Olive Oils ◽  
Olive Oils ◽  
Chemometric Approach
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