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1.
J Food Sci ; 87(12): 5418-5429, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36377629

RESUMO

The global plant-based product market is growing rapidly, and plant-based milks show promising potential in the coffee beverage sector. This study aimed to identify sensory drivers of liking of plant-based milk coffees for guiding the development of plant-based products with competitive advantages over dairy milk coffees. Twelve coffee samples were prepared with plant-based (oat, soy, almond, and coconut) and dairy (cow) milk. Quantitative descriptive analysis was used to generate sensory attribute terms for the 12 samples. Check-all-that-apply (CATA) questions were given to consumers to evaluate the sensory profiles and consumer acceptance of the 12 samples. Correspondence analysis and cluster analysis of the CATA results from 80 consumers showed that the oat and soy milk coffee samples were closer to what the consumers perceived as "typical" milk products, while the coconut and almond milk coffee samples were closer to the "flavored" milk products. Partial least squares regression results revealed that the attributes smooth, milky, and thick were important drivers of liking for the milk coffee samples. On the contrary, rancid oil, greasy, astringent, and rice bran were the major sensory attributes lowering the panelists' acceptance of the milk coffee samples. The majority of consumers (53.5%) were "dairy milk lovers," who specifically liked the dairy milk coffee sample and had low acceptance for the plant-based milk coffee samples. There was also a group of consumers (46.2%) classified as "plant-based milk coffee lovers." They enjoyed coffees prepared with a wide range of milks (both dairy and nondairy milks) and represent high-potential consumers for plant-based milk coffee products. PRACTICAL APPLICATION: The positive and negative drivers of liking for plant-based milk coffee samples were identified. A competitive landscape analysis method for assessing the acceptability and sensory attributes of 12 milk coffee samples (11 commercial plant-based milks and 1 dairy milk product) in the current Asian market was established. The sensory terms developed in this study can also be applied to evaluate sensory profiles of other plant-based and dairy milk coffee samples.


Assuntos
Café , Preferências Alimentares , Bovinos , Feminino , Animais , Comportamento do Consumidor , Paladar , Aromatizantes/análise
2.
Foods ; 11(19)2022 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-36230065

RESUMO

The sensory qualities of Taiwanese teas are evaluated by the experts from the Tea Research and Extension Station (TRES) at tea competitions held annually. The prices of Taiwanese teas are also influenced by the results of these tea competitions. However, a tea winning an award and having a high sensory quality and price does not mean that it is liked by Taiwanese consumers. The check all that apply method (CATA) is a scientific method of sensory evaluation. It is able to evaluate the sensory characteristics with consumers and is cheap and time-saving. Twelve samples of γ-aminobutyric acid (GABA) Oolong tea made by the Taiwan Tea No. 12 cultivar were selected from the first Taiwanese GABA tea competition in 2020. The aim of this research was to study young Taiwanese consumers' acceptability for GABA Oolong tea infusions, and their opinions towards the sensory qualities of teas through questionnaires composed of CATA questions and hedonic scales. Based on the results, the CATA method identified 21 important descriptive terms for GABA tea that were selected by over 20% of consumers. It was found that the consumers like GABA Oolong teas with 13 specific sensory characteristics, but dislike the ones with another 6 specific sensory characteristics. We conjecture that the different process of tea production will affect consumers' preference for GABA Oolong tea. Overall, GABA Oolong tea has the same delightful sensory characteristics as traditional Taiwanese specialty Oolong teas, and is liked by the young Taiwanese consumers.

3.
Foods ; 10(10)2021 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-34681393

RESUMO

The market size of varied carbonated teas and bottled ready-to-drink tea products in Taiwan has surpassed that of traditional Taiwan tea with hot infusion. The consumption behavior of Taiwanese consumers for new and varied types of cold infusion tea products has also differed from that of traditional hot infusion ones. More kinds of Taiwan tea with different fermentation levels are gradually being used as raw materials for various cold infusion tea products. Therefore, to study consumers' responses towards cold-brewed tea has become more important for the market of tea in Taiwan. This study recruited Taiwanese consumers to taste seven Taiwanese specialty tea infusions with various degrees of fermentation, and their opinions were gathered by questionnaires composed of check-all-that-apply (CATA), and temporal check-all-that-apply (TCATA) questions and hedonic scales. We found that both CATA and TCATA data agreed that the sensory features of unfermented and lightly semi-fermented tea infusions could be plainly distinguished from the ones of heavily semi-fermented and fully fermented teas based on correspondence analyses. Through CATA and TCATA, the sensory characteristics of the cold-brewed tea of various fermentation degrees could be clearly identified. The first-hand information of cold tea beverages analyzed through this study could be useful for the development of the market in Taiwan. The proper level of bitterness, astringency, fresh tea leaf flavor, and late sweetness were the essential qualities of cold infusions brewed from lightly fermented teas, which could be the best raw materials for production of cold tea beverages to satisfy as many consumers as possible.

4.
J Food Sci ; 86(1): 40-54, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33330998

RESUMO

In our study, a food safety management system was developed for a chaga mushroom biotechnology product manufacturer, with the purpose of meeting the quality demands of customers and enhancing the manufacturer's reputation. The study focused on identifying the potentially significant hazards present at each stage of the production process for chaga mushroom capsule products, and on ensuring that the biotechnology company in question has fully implemented ISO22000:2018 and the HACCP methodology. The results indicate that, in the 1 year following the implementation of ISO 22000:2018, there was a statistically significant drop (P < 0.05) in the coliforms level of the tested biotechnology product samples that started in the ninth month following implementation. The rapid screening of mycotoxin, heavy metal, and pesticide residue levels also increased monitoring intensity and strengthened the periodic rotation plan, enabling control over potential problems relating to raw materials and ensuring product quality. This finding reveals the importance and necessity of rapid screening for small- and medium-sized food industry enterprises. Furthermore, 1 year after the system's implementation, the defect rate for chaga products was also observed to have declined, and the number of process flow anomalies requiring correction was also found to have decreased significantly (P < 0.05), indicating that safety and quality levels were improving and stabilizing. If implemented over a longer period of time, the food safety management system's benefits would stand out even more, and significant improvements would be observed for more monitored items. PRACTICAL APPLICATION: Few studies have touched on food safety management systems (FSMSs) developed for capsule health food products. The enterprise examined in this study had actively worked to improve its quality system and meet its customers' needs through the implementation of the FSMSs.


Assuntos
Biotecnologia/normas , Indústria Alimentícia/normas , Inocuidade dos Alimentos , Inonotus , Gestão da Segurança/métodos , Alérgenos , Alimento Funcional/normas , Análise de Perigos e Pontos Críticos de Controle , Inonotus/química , Metais Pesados/análise , Micotoxinas/análise , Resíduos de Praguicidas/análise , Taiwan
5.
Foods ; 9(12)2020 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-33291825

RESUMO

To study the effects of deep-ocean water concentrate (DOWC) on sake quality, Taichung No. 10 indica rice (Oryza sativa subsp. indica) and Tainan No. 11 japonica rice (O. sativa subsp. japonica) were used as raw materials, and basic physicochemical property parameters in shochu were analyzed differentially. Sake fermentation mash analysis results revealed that DOWC addition did not significantly affect the basic physicochemical properties during sake brewing, but it significantly reduced citric acid and malic acid contents in Taichung No. 10 indica rice sake sample by 52-66% and 73-93%, respectively. DOWC addition significantly increased citric acid content in Tainan No. 11 japonica rice sake sample by 32-202%. Rice shochu analysis results revealed that DOWC addition significantly increased isoamyl acetate, ethyl hexanoate, and ethyl octanoate contents in shochu made from japonica rice and indica rice, respectively. The results indicate that rice variety directly affects the types of volatile compounds in rice shochu. Principal component analysis and sensory evaluation results revealed that DOWC addition affected the composition of volatile compounds in the two types of rice shochu and resulted in differences in flavor evaluation. DOWC addition affects yeast metabolites and directly changes the volatile compound composition and flavor of rice shochu.

6.
Appl Biochem Biotechnol ; 191(1): 412-425, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32096058

RESUMO

This study led in the pioneering technique incubated in a bioreactor with the forced air injection system. The purpose of this study was to establish the optimal incubation conditions for this technique. The results showed that the speed at which Inonotus obliquus was incubated with the forced air injection system was superior to that with a normal bioreactor. A nitrogen to oxygen ratio of 50:50 provided the best results with the forced air injection system, including in terms of the achievement of biomass, total triterpenes, betulinic acid content, and the scavenging activities of DPPH radicals, which reached up to 21.3 g/1000 mL, 2.1 g/1000 mL, 1.9 g/1000 mL, and 87.3%, respectively. The results showed that the bioreactor with the forced air injection system could more effectively incubate I. obliquus by using less vapor while still utilizing a model close to that of a traditional bioreactor. The innovative bioreactor fermentation model was thus more economical than the traditional bioreactor model.


Assuntos
Biomassa , Reatores Biológicos , Inonotus/crescimento & desenvolvimento , Triterpenos Pentacíclicos/metabolismo , Triterpenos/metabolismo , Ar , Ácido Betulínico
7.
Foods ; 9(1)2020 Jan 18.
Artigo em Inglês | MEDLINE | ID: mdl-31963672

RESUMO

For hundreds of years, Taiwan has been famous for its various specialty teas. The sensory features of these teas have been well specialized and standardized through sensory evaluations performed by tea experts in yearly competitions throughout history. However, the question arises of whether young Taiwanese consumers, whose dietary behaviors have become Westernized, agree with the conventional sensory standards and association/postprandial concepts in the traditional tea market of Taiwan. To study young Taiwanese consumers' ideas towards traditional specialty teas, this research recruited 109 respondents, younger than the age of 30, to taste seven Taiwanese specialty tea infusions of various degrees of fermentation, and their opinions were gathered by questionnaires composed of check-all-that-apply (CATA) questions and hedonic scales. Through statistical analyses, we found that several tea sensory attributes which were emphasized in experts' descriptive sensory evaluations were not appreciated by the young Taiwanese people. Instead, tea aroma and late sweetness/palatable/smooth/refreshing mouthfeels were the most important sensory attributes contributing to their tea preference. Overall, there would generally be no problem in serving young Taiwanese consumers lightly-fermented oolong teas that generate the highest digestive and lowest heartburn postprandial perceptions.

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