scholarly journals Finding correlations between hop catalogs and real hoppy character in brewery conditions

2021 ◽  
Vol 67 (6) ◽  
pp. 537-547
Author(s):  
Danilo Legisa ◽  
Hernan Mengoni

Brewing recipe design is mainly based on brewer’s expertise, information available in catalogs and certificates of analysis (CoA’s). Hop schedule design and formulation has become an essential topic since hoppy craft beers took the scene. But how accurate is the flavor profile information provided in catalogs? How useful is the chemical composition profile information in CoA’s? Besides current research and tons of reported experiences, hops impact is still a mystery, and topics like biotransformation are black-boxes for brewers. In this study, nine single hopped beers were brewed, and a trained panel conducted sensorial beer analysis. Then, to asses hop impact, qualitative and process-related-quantitative beer characteristics were contrasted to find valuable correlations and trends between hop catalogs and final beers. Discrepancies with catalog qualitative data were reported. In addition to what is already described in the literature, here we describe how α-acids, linalool, myrcene, and geraniol (despite the classical use for these compounds) could predict positive and negative hop impact of nine different hop varieties on bitterness, flavor, and aroma, when they are applied in different brewing process steps. Also, with this pipeline we stand the basis of a tool to be improved, available for brewers, to better predict their brews and assess new hop varieties in real-life pilot brewing set ups.

2018 ◽  
Vol 82 (1) ◽  
pp. 51-74 ◽  
Author(s):  
Alice Goffman

Reviving classical attention to gathering times as sites of transformation and building on more recent microsociological work, this paper uses qualitative data to show how social occasions open up unexpected bursts of change in the lives of those attending. They do this by pulling people into a special realm apart from normal life, generating collective effervescence and emotional energy, bringing usually disparate people together, forcing public rankings, and requiring complex choreography, all of which combine to make occasions sites of inspiration and connection as well as sites of offense and violation. Rather than a time out from “real” life, social occasions hold an outsized potential to unexpectedly shift the course that real life takes. Implications for microsociology, social inequality, and the life course are considered.


2017 ◽  
Vol 54 (3) ◽  
pp. 265
Author(s):  
Maheshwari H.M. ◽  
Prabhavathi S.N ◽  
Jamuna Prakash

The present study was designed to investigate the flavor potentiating effect of an additive, Mono Sodium Glutamate (MSG) for an Indian fried product namely ‘<em>Poori</em>’ prepared with spices. Poories were prepared with three levels of MSG, 50, 75 and 100mg/100g of flour. Four spices namely, chili, omum, pepper and cumin were used for addition to poories either singly or in combination. All products were evaluated for sensory acceptability by 40 semi-trained panel using scoring and free choice profiling. Data were analyzed using suitable statistical tests. Results indicated that MSG improved the acceptability of basic product. Spice added products also received high scores demonstrating the flavor enhancing effect of MSG. The scores were significantly higher for products with mixture of spices indicating synergism between spices and MSG. In conclusion, MSG can be used to improve the flavor profile of poories.


Author(s):  
Sutini Sutini ◽  
Martina Yuliver Francisca ◽  
Siti Rokayah ◽  
Yusiana Rismatika Slawantya ◽  
Faqih Faqih

Abstract:Understanding the concept for students becomes an important basis in thinking so as to solve the problems that exist in real life. This study aims to determine the level of interpersonal learning styles and students' understanding of the concepts of statistics. This research is qualitative in nature, with the research subjects being 6 students of class XII MIPA 1 in Madrasah Aliyah in Lamongan and 1 mathematics subject teacher. The object in this study is the ability to understand statistical concepts and interpersonal learning styles in students. The instruments used were observation, questionnaires, test questions, interviews, and documentation. Based on the analysis of qualitative data that has been done, the results obtained interpersonal learning styles in students are in the high and medium categories. with different levels of interpersonal learning styles. Even though they have a high level of interpersonal learning style, not all are able to understand statistical concepts well. Abstrak:Pemahaman konsep bagi peserta didik menjadi dasar penting dalam berpikir sehingga dapat menyelesaikan permasalahan-permasalahan yang ada dikehidupan nyata. Penelitian ini memiliki tujuan untuk mengetahui tingkat gaya belajar interpersonal dan pemahaman konsep peserta didik terhadap statistika. Penelitian ini bersifat kualitatif, dengan subjek penelitian adalah 6 peserta didik kelas XII MIPA 1 di salah satu Madrasah Aliyah di Lamongan dan 1 orang guru matapelajaran matematika. Objek dalam penelitian ini adalah kemampuan dalam pemahaman konsep statistika dan gaya belajar interpersonal pada peserta didik. Instrumen yang digunakan adalah observasi, angket, tes soal, wawancara, dan dokumentasi. Berdasarkan analisis data kualitatif yang telah dilakukan, diperoleh hasil gaya belajar interpersonal pada peserta didik berada dalam kategori tinggi dan sedang. dengan tingkat gaya belajar interpersonal yang berbeda. Meskipun memiliki tingkat gaya belajar interpesonal tinggi namun tidak semua mampu memahami konsep statistika dengan baik.


2008 ◽  
Vol 37 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Jonathan Makuwira

AbstractThis research examined different ways in which tutors of mathematics approach their tutoring among Indigenous students enrolled in the Tertiary Entry Program (TEP) at Central Queensland University's Indigenous Learning, Spirituality and Research Centre. The study sought to establish whether or not there were any differences between Indigenous and non-Indigenous tutors' approaches to tutoring and, document challenges and opportunities in tutoring mathematics to Indigenous students. Using qualitative data obtained from interviews, the study raised more questions than answers. The results reflect tutors' own teaching orientations. This is particularly clear when all of the tutors who participated in this study were NOT mathematics trained teachers but had either taken interest in the subject as a result of doing a mathematics-related subject such as engineering and science. Overall, there was consensus that establishing rapport between the students and Learning Advisers was crucial. Knowing who the students are and, vice versa, was also considered fundamental. For some, it was an acknowledgment that both the tutor and the student were on a discovery journey. The majority of the tutors prefer a process where a mathematical concept was explained first, followed by an application of real life situations.


1997 ◽  
Vol 2 (3) ◽  
pp. 39-51 ◽  
Author(s):  
K. Buston

Much has been written in recent years about using computers packages to assist qualitative data analysis. The focus has been on the implications of this development for the analytical process. This paper describes the use of NUD*IST in a recently completed study of the experiences of chronically ill young people, and assesses the epistemological effects of its usage. As well as providing basic practical information on some of NUD*IST's functions, whilst highlighting one particular way of utilising the package, the paper addresses some of the methodological issues raised in the CAQDAS debate by drawing on this ‘real-life’ experience.


Beverages ◽  
2018 ◽  
Vol 4 (3) ◽  
pp. 53 ◽  
Author(s):  
Claudia Gonzalez Viejo ◽  
Sigfredo Fuentes ◽  
Damir Torrico ◽  
Mei Lee ◽  
Yue Hu ◽  
...  

The use of ultrasounds has been implemented to increase yeast viability, de-foaming, and cavitation in foods and beverages. However, the application of low frequency audible sound to decrease bubble size and improve foamability has not been explored. In this study, three treatments using India Pale Ale beers were tested, which include (1) a control, (2) the application of audible sound during fermentation, and (3) the application of audible sound during natural carbonation. Five different audible frequencies (20 Hz, 30 Hz, 45 Hz, 55 Hz, and 75 Hz) were applied daily for one minute each (starting from the lowest frequency) during fermentation (11 days, treatment 2) and carbonation (22 days, treatment 3). Samples were measured in triplicates using the RoboBEER to assess color and foam-related parameters. A trained panel (n = 10) evaluated the intensity of sensory descriptors. Results showed that samples with sonication treatment had significant differences in the number of small bubbles, alcohol, and viscosity compared to the control. Furthermore, except for foam texture, foam height, and viscosity, there were non-significant differences in the intensity of any sensory descriptor, according to the rating from the trained sensory panel. The use of soundwaves is a potential treatment for brewing to improve beer quality by increasing the number of small bubbles and foamability without disrupting yeast or modifying the aroma and flavor profile.


1988 ◽  
Vol 20 (8-9) ◽  
pp. 31-36 ◽  
Author(s):  
Stuart W. Krasner

Flavor-profile analysis (FPA) is a sensory method utilizing a trained panel of four to six individuals. Reference materials are used to establish a common vocabulary for different odors found in drinking water. Known quantities of different taste- and odor-causing chemicals are evaluated to calibrate the panel on a consistent intensity scale. Each identifiable descriptor is assigned its own intensity. This method has been successfully applied in the analysis of musty-smelling compounds, e.g., 2-methylisoborneol (MIB). MIB samples and standards from 1 to 80 ng/l have been shown to observe the WeberFechner law (i.e., a plot of flavor intensity versus logarithm of concentration of MIB yielded a straight line). FPA has also been used to handle fishy/swampy odor problems. In many instances, specific causative organic compounds were not identified; however, FPA evaluations of water using different free-chlorine dosages and contact times made possible immediate resolution of these odor problems. FPA has yielded reproducible sensory data that have been useful in better understanding and handling off-flavors in drinking water.


Author(s):  
Anne Marie Shier

Abstract This article focuses on how intercountry adoptees use social media and technology to negotiate and facilitate reunion with their birth families. The qualitative data were drawn from in-depth, semi-structured interviews with eleven adoptees who were internationally adopted to Ireland and have contact with their birth families using social media and technology. The findings from this interpretivist study demonstrate that social media and technology have significantly transformed and can now play a central role in reunion in intercountry adoption. They also suggest that social workers need to be aware of the emerging role of social media and technology in intercountry adoption reunion to develop further knowledge and skills in this area. Specifically, the study indicates that social media and technology have facilitated, ‘normalised’ and casualised aspects of contact with birth family; increased the pace of contact and can pose challenges in navigating contact and boundaries. A key finding of this study relates to the importance of contact with birth siblings and their potential role as mediators and facilitators of contact with birth parents. Participants report that whilst social media and technology have facilitated their contact with birth family, it cannot and does not replace the need for ‘real life’ in-person contact.


2021 ◽  
Vol 12 ◽  
Author(s):  
Karen Leneh Buckle ◽  
Kathy Leadbitter ◽  
Ellen Poliakoff ◽  
Emma Gowen

This study, called for by autistic people and led by an autistic researcher, is the first to explore ‘autistic inertia,’ a widespread and often debilitating difficulty acting on their intentions. Previous research has considered initiation only in the context of social interaction or experimental conditions. This study is unique in considering difficulty initiating tasks of any type in real life settings, and by gathering qualitative data directly from autistic people. Four face-to-face and 2 online (text) focus groups were conducted with 32 autistic adults (19 female, 8 male, and 5 other), aged 23–64 who were able to express their internal experiences in words. They articulate in detail the actions they have difficulty with, what makes it easier or harder to act, and the impact on their lives. Thematic analysis of the transcripts found four overarching themes: descriptions of inertia, scaffolding to support action, the influence of wellbeing, and the impact on day-to-day activities. Participants described difficulty starting, stopping and changing activities that was not within their conscious control. While difficulty with planning was common, a subset of participants described a profound impairment in initiating even simple actions more suggestive of a movement disorder. Prompting and compatible activity in the environment promoted action, while mental health difficulties and stress exacerbated difficulties. Inertia had pervasive effects on participants’ day-to-day activities and wellbeing. This overdue research opens the door to many areas of further investigation to better understand autistic inertia and effective support strategies.


Author(s):  
Victoria I. Marín

Research-based learning (RBL) is an approach that aims to engage students in research activities within their study discipline. Since this method puts the focus on the learner, Web 2.0 tools are considered to provide good support in enhancing collaboration processes, which are necessary in conducting research in real-life situations. The link between RBL and the use of digital technologies in higher education has not yet been extensively empirically explored. Therefore, the main aim of this study, based on a project-based university seminar, was to explore the possibilities of group e-Portfolios based on blogs, within the framework of a concrete form of RBL in education studies, the design-inquiry approach. The study employed mixed methods, consisting of quantitative and qualitative data collected via a student questionnaire, and further qualitative data collected from the group blogs and the students’ final reflections. The results show the possibilities and challenges of using e-Portfolios based on blogs for RBL processes. The article concludes by providing guidelines and recommendations and presents a framework that connects the models used in the study.


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