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Utilization of brewery wastes in food industry
Beer is the most popular low-alcohol beverage consumed in large amounts in many countries each year. The brewing industry is an important global business with huge annual revenues. It is profitable and important for the economies of many countries around the world. The brewing process involves several steps, which lead to fermentation of sugars contained in malt and conversion thereof into alcohol and carbon dioxide by yeasts. Beer brewing generates substantial amounts of by-products. The three main brewing industry wastes include brewer’s spent grain, hot trub, and residual brewer’s yeast. Proper management of these wastes may bring economical benefits and help to protect the environment from pollution caused by their excessive accumulation. The disposal of these wastes is cumbersome for the producers, however they are suitable for reuse in the food industry. Given their composition, they can serve as a low-cost and highly nutritional source of feed and food additives. They also have a potential to be a cheap material for extraction of compounds valuable for the food industry and a component of media used in biotechnological processes aimed at production of compounds and enzymes relevant for the food industry.
Journal Article
Natural Sweeteners: The Relevance of Food Naturalness for Consumers, Food Security Aspects, Sustainability and Health Impacts
At a moment when the population is increasingly aware and involved in what it eats, both consumers and the food sector are showing more interest in natural foods. This review work discusses, addresses and provides details of the most important aspects of consumer’s perceptions of and attitudes to natural foods and in-depth research into natural sweeteners. It also includes issues about their use and development as regards health impacts, food security and sustainability. In line with our main research outcome, we can assume that consumers are very keen on choosing foods with clean labelling, natural ingredients, preferably with other functional properties, without the loss of taste. In response to such a phenomenon, the food industry offers consumers alternative natural sweeteners with the advantage of added health benefits. It is noteworthy that Nature is a superb source of desirable substances, and many have a sweet taste, and many still need to be studied. Finally, we must stress that being natural does not necessarily guarantee market success.
Journal Article
Polyphenol Extraction from Food (by) Products by Pulsed Electric Field: A Review
Nowadays, more and more researchers engage in studies regarding the extraction of bioactive compounds from natural sources. To this end, plenty of studies have been published on this topic, with the interest in the field growing exponentially. One major aim of such studies is to maximize the extraction yield and, simultaneously, to use procedures that adhere to the principles of green chemistry, as much as possible. It was not until recently that pulsed electric field (PEF) technology has been put to good use to achieve this goal. This new technique exhibits many advantages, compared to other techniques, and they have successfully been reaped for the production of extracts with enhanced concentrations in bioactive compounds. In this advancing field of research, a good understanding of the existing literature is mandatory to develop more advanced concepts in the future. The aim of this review is to provide a thorough discussion of the most important applications of PEF for the enhancement of polyphenols extraction from fresh food products and by-products, as well as to discuss the current limitations and the prospects of the field.
Journal Article
Cooking up a business : lessons from food lovers who turned their passion into a career--and how you can, too
Stories and advice for creating a business out of the food you love.
Book
Listeria monocytogenes contamination of ready‐to‐eat foods and the risk for human health in the EU
Food safety criteria for Listeria monocytogenes in ready‐to‐eat (RTE) foods have been applied from 2006 onwards (Commission Regulation (EC) 2073/2005). Still, human invasive listeriosis was reported to increase over the period 2009–2013 in the European Union and European Economic Area (EU/EEA). Time series analysis for the 2008–2015 period in the EU/EEA indicated an increasing trend of the monthly notified incidence rate of confirmed human invasive listeriosis of the over 75 age groups and female age group between 25 and 44 years old (probably related to pregnancies). A conceptual model was used to identify factors in the food chain as potential drivers for L. monocytogenes contamination of RTE foods and listeriosis. Factors were related to the host (i. population size of the elderly and/or susceptible people; ii. underlying condition rate), the food (iii. L. monocytogenes prevalence in RTE food at retail; iv. L. monocytogenes concentration in RTE food at retail; v. storage conditions after retail; vi. consumption), the national surveillance systems (vii. improved surveillance), and/or the bacterium (viii. virulence). Factors considered likely to be responsible for the increasing trend in cases are the increased population size of the elderly and susceptible population except for the 25–44 female age group. For the increased incidence rates and cases, the likely factor is the increased proportion of susceptible persons in the age groups over 45 years old for both genders. Quantitative modelling suggests that more than 90% of invasive listeriosis is caused by ingestion of RTE food containing > 2,000 colony forming units (CFU)/g, and that one‐third of cases are due to growth in the consumer phase. Awareness should be increased among stakeholders, especially in relation to susceptible risk groups. Innovative methodologies including whole genome sequencing (WGS) for strain identification and monitoring of trends are recommended.
This publication is linked to the following EFSA Supporting Publications article: http://onlinelibrary.wiley.com/doi/10.2903/sp.efsa.2018.EN-1352/full
Journal Article
Opération Mange-Gardiens : non au gaspillage alimentaire!
\"Un tiers des aliments produits dans le monde n'est mangé par personne et jeté aux ordures. À l'échelle planétaire, le gaspillage alimentaire représente le volume faramineux de 1,3 milliard de tonnes de fruits, de légumes, de viandes, de laitages et de céréales... À chaque seconde, on détruit 41 tonnes de nourriture comestible à travers le monde, alors que plus de 345 millions de personnes souffrent de la faim. Opération mange-gardiens, un documentaire fouillé et incontournable pour sensibiliser les jeunes au gaspillage alimentaire et pour leur donner des outils afin qu'ils deviennent à leur tour de véritables « mange-gardiens »\"--Publisher's website.
Book
Consumer attitudes and buying behavior for green food products
PurposeThe purpose of this paper is to apply the multidimensional construct of green perceived value (GPV) to the buying behavior of green food products to enhance the understanding of consumer behavior intentions and explain the formation of the intention to buy green food products.Design/methodology/approachThis study adopted four GPVs (i.e. functional value, conditional value, social value and emotional value) and explored the relationships among GPV, attitudes and purchase intention. A total of 300 self-administered questionnaires were distributed, from which 253 usable responses were obtained.FindingsThe relationships between six constructs and 20 indicators were measured using structural equation modeling. All the underlying dimensions had a significant effect on consumers’ attitudes, significantly affecting their purchase intention.Originality/valueImplications for future research and marketing strategies in the field of purchasing behaviors of green food products are discussed.
Journal Article