Physicochemical Properties, Microbial Quality and Sensory Attributes of Different Black Tea Brands

2017 ◽  
Vol 13 (3) ◽  
Author(s):  
Kobra Keshavarz Faizasa ◽  
Mohammadreza Koushki ◽  
Shiva Roofigary Haghighat
2011 ◽  
Vol 1 ◽  
pp. 854-861 ◽  
Author(s):  
Natalia Szerman ◽  
Yanina Barrio ◽  
Belén Schroeder ◽  
Paula Martinez ◽  
Ana María Sancho ◽  
...  

Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 598
Author(s):  
Yun-Mi Lee ◽  
Seo-Jin Chung ◽  
John Prescott ◽  
Kwang-Ok Kim

The relationship between food-related individual characteristics and performance in sensory evaluation was investigated. The study focused on differences in discriminative ability and perceptual sensitivity according to levels of product involvement or food neophobia during the intensity rating of sensory attributes in consumer profiling. Consumers (N = 247) rated the intensity of attributes for seven flavored black tea drinks and completed the Food Neophobia Scale and the Personal Involvement Inventory measuring product involvement with the flavored black tea drink. In the higher product involvement (IH) group and the lower food neophobia (NL) group, the number of sensory attributes representing the sample effect and of subsets discriminating the samples were greater, and more total variance of the samples was explained. The higher the product involvement or the lower the food neophobia, the greater the differentiation in characterizing samples with more attributes in the intensity ratings. Interestingly, the high food neophobia (NH) group showed less active performance compared to the NL group during the sensory evaluation overall, but the NH group was more concerned about unfamiliar attributes and samples. The results implied that the positive attitude resulting from high product involvement and low food neophobia may induce more active behavior and better performance during the sensory evaluation.


2016 ◽  
Vol 20 (1) ◽  
pp. 10-15
Author(s):  
Kazuko Takagi ◽  
Kazutoyo Yoda ◽  
Kenji Miyazawa ◽  
Gaku Harata ◽  
Fang He ◽  
...  

LWT ◽  
2016 ◽  
Vol 71 ◽  
pp. 102-109 ◽  
Author(s):  
Paulina Nowicka ◽  
Aneta Wojdyło ◽  
Mirosława Teleszko ◽  
Justyna Samoticha

Foods ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 831 ◽  
Author(s):  
Han Chen ◽  
Haotian Zheng ◽  
Margaret Anne Brennan ◽  
Wenpin Chen ◽  
Xinbo Guo ◽  
...  

The impacts of black tea infusion on physicochemical properties, antioxidant capacity and microstructure of stirred acidified dairy gel (ADG) system have not been fully explored. These impacts were studied during a 28-day cold storage (4 °C) period to explore the feasibility and technical boundaries of making acidified dairy gels in which black tea infusion (BTI) is incorporated. Reconstituted skim milks containing different proportions of BTI were acidified by GDL (glucono-δ-lactone) at 35 °C for making ADG systems. Both textural properties and structural features were characterized; antioxidant capacity was determined through three assays. They are (1) free radical scavenging ability by DPPH (2,2-diphenyl-1-picrylhydrazyl) assay; (2) ABTS [2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid)] assay and (3) ferric reducing antioxidant power (FRAP) assay. The microstructure of the ADGs was observed using SEM (scanning electron microscopy) and CLSM (confocal laser scanning microscopy). Results showed that BTI significantly increased the antioxidant capacity of the gel systems and the gel containing 15% BTI was as stable as the control gel in terms of syneresis rate. However lower phase stability (higher syneresis rate) was observed in the ADG with a higher portion of BTI (30% to 60%). The microstructure of the ADGs observed may explain to the phase stability and textural attributes. The results suggested that tea polyphenols (TPs) improved antioxidant capacity in all samples and the interactions between BTI and dairy components significantly altered the texture of ADGs. Such alterations were more pronounced in the samples with higher proportion of BTI (60%) and/or longer storage time (28 days).


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