Study of the physico-chemical, structural, microbiological properties and volatile flavour compounds profile of kefir supplemented with electro-activated whey

2021 ◽  
pp. 105218
Author(s):  
Sabina Aidarbekova ◽  
Mohammed Aider
Keyword(s):  
Flavour Compounds ◽  
Physico Chemical ◽  
Volatile Flavour ◽  
Microbiological Properties

scholarly journals The influence of roasting conditions on volatile flavour compounds in raw and roasted cashew kernels (Anacadium ocidentale) grown in Nigeria

2019 ◽  
Vol 11 (1) ◽  
pp. 1-10
Author(s):  
Olawale Paul Olatidoye ◽  
Taofik Akinyemi Shittu ◽  
Samuel Olusegun Awonorin ◽  
Emmanuel Sunday Akin Ajisegiri
Keyword(s):  
Volatile Compounds ◽  
Extraction Procedure ◽  
Consumer Acceptability ◽  
Volatile Fraction ◽  
Flavour Compounds ◽  
Overall Acceptability ◽  
Flame Ionization ◽  
Volatile Flavour ◽  
Steam Distillation Extraction ◽  
Temperature Time

The use of inappropriate temperature-time combinations during the roasting of nuts could lead to quality defects, such as burnt taste, short shelf-life, rancidity, and poor flavour. In this study, cashew kernels were roasted in a forced airflow-drying oven for 20, 40,and 60 min at 100, 120, 140, and 160°C. The productswere evaluated for volatile flavour compounds and the sensory evaluation of the roasted cashew kernelsat different roasting conditions. The volatile fraction was isolated using the combined steam distillation–extraction procedure and identified by gas chromatography–flame-ionization detection (GC-FID). The consumer acceptability test was carried out by 100 panellists using nine point hedonic scales to assess preferences for like or dislike, colour, taste, texture, flavour,and overall acceptability. It was found that there were significant differences in flavour compounds between the different conditions of roasting. Twenty-nine volatile compounds were identified in both fresh and roasted cashew kernelscomprising five main classes,which consist of 12 hydrocarbons, eight aldehydes, four ketones, three alcohols,and one acid. The volatile compounds(mg/100g) ranged from 5.03x10-2to 1.20 (2-butanone), 7.46x10-6to 1.85 (hexanal), 8.91x10-6to 1.94 (acetone), 6.74x10-1to 2.24 (benzaldehyde). The amount of generated volatile compounds increased astheroasting temperature and time increased. The consumer acceptability test revealed that samples roasted for 40 or 60 min at 140°C produced the most acceptable product in terms of all the measured attributes. The study showed that the roasting conditions produced acceptable cashew kernelsof desirable colour and superior flavour quality that enhance direct and commercial utilization.

Extraction of volatile flavour compounds from butter oil in a low-density polyethylene membrane pouch

2012 ◽  
Vol 27 (5) ◽  
pp. 367-371 ◽  
Author(s):  
Busarin Chongcharoenyanon ◽  
Nami Yamashita ◽  
Noriyuki Igura ◽  
Seiji Noma ◽  
Mitsuya Shimoda
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Butter Oil ◽  
Flavour Compounds ◽  
Volatile Flavour
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