scholarly journals Yellow Mealworm and Black Soldier Fly Larvae for Feed and Food Production in Europe, with Emphasis on Iceland

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2744
Author(s):  
Runa Thrastardottir ◽  
Hildur Thora Olafsdottir ◽  
Ragnheidur Inga Thorarinsdottir

Insects are part of the diet of over 2 billion people worldwide; however, insects have not been popular in Europe, neither as food nor as a feed ingredient. This has been changing in recent years, due to increased knowledge regarding the nutritional benefits, the need for novel protein production and the low environmental impact of insects compared to conventional protein production. The purpose of this study is to give an overview of the most popular insects farmed in Europe, yellow mealworm, Tenebrio molitor, and black soldier fly (BSF), Hermetia illucens, together with the main obstacles and risks. A comprehensive literature study was carried out and 27 insect farming companies found listed in Europe were contacted directly. The results show that the insect farming industry is increasing in Europe, and the success of the frontrunners is based on large investments in technology, automation and economy of scale. The interest of venture capital firms is noticeable, covering 90% of the investment costs in some cases. It is concluded that insect farming in Europe is likely to expand rapidly in the coming years, offering new proteins and other valuable products, not only as a feed ingredient, but also for human consumption. European regulations have additionally been rapidly changing, with more freedom towards insects as food and feed. There is an increased knowledge regarding safety concerns of edible insects, and the results indicate that edible insects pose a smaller risk for zoonotic diseases than livestock. However, knowledge regarding risk posed by edible insects is still lacking, but food and feed safety is essential to put products on the European market.

Agriculture ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 233 ◽  
Author(s):  
Anna Bordiean ◽  
Michał Krzyżaniak ◽  
Mariusz J. Stolarski ◽  
Stanisław Czachorowski ◽  
Dumitru Peni

Continued population growth could lead to protein deficiency in the human diet. To counteract this risk, attempts are being made to identify new edible sources of protein. The aim of this paper was to review the existing literature and to analyse the current state of yellow mealworm (Tenebrio molitor) rearing for food and feed, especially in Europe. The yellow mealworm is the most widely bred and traded insect species in Europe that has high feed conversion ratio; 3.4 to 6.1 kg of feed ingested per kg of harvested larvae. Mealworms could compete with livestock due to their high protein and fat content and low environmental impact. Mealworms have been extensively researched as a source of feed for animals, including poultry, fish, pets and birds. Its nutrient content depends on the processing method, where thermal processing is least desirable. Mealworms are characterised by a high and variable microbial load which has to be reduced before consumption. The antibiotics, pesticides and other substances should also be analysed to ensure that mealworms are a safe protein source for human consumption. The nutritional benefits of mealworms have to be communicated to European consumers who are generally averse to eating insects.


2020 ◽  
Vol 12 (22) ◽  
pp. 9574
Author(s):  
Andreas Walter ◽  
Thomas Klammsteiner ◽  
Magdalena Gassner ◽  
Carina Desirée Heussler ◽  
Suzanne Kapelari ◽  
...  

Today, insect applications for food and feed are of strong economic, ecological and social interest. Despite their tremendous potential, insects still elicit negative associations in the mindset of Western consumers, which is attributed to a lack of knowledge and scarce opportunities for engagement in this topic. The citizen science project ‘six-legged livestock’ aims to increase the potential of the insect Hermetia illucens (black soldier fly), merging the topics ‘waste re-valorisation’ and ‘protein production’ as a cross-link to circular economy. Workshops were held in four school classes, involving 89 pupils, aged 15 to 18 years old. Making use of organic wastes, participating school classes ran eight rearing systems containing a total of 1800 H. illucens larvae. In the four-week experiments, the pupils monitored larval growth and development. Evidently, the pupils were highly motivated to run their rearing systems and fulfil their working tasks. Furthermore, negative associations with insects, including phobia and scepticism decreased, while excitement for the topic increased after hands-on work with the insects. The presented project may be considered an innovative approach paving the way for the establishment of insects as an important educational tool, since they are still underrepresented in scholarly curricula, despite the public outrage over insect decline.


2021 ◽  
Vol 8 ◽  
Author(s):  
Yuxia Chen ◽  
Yining Xie ◽  
Kolapo M. Ajuwon ◽  
Ruqing Zhong ◽  
Tao Li ◽  
...  

Xylo-oligosaccharides (XOS) are considered as functional oligosaccharides and have great prebiotic potential. XOS are the degraded products of xylan prepared via chemical, physical or enzymatic degradation. They are mainly composed of xylose units linked by β-1, 4 bonds. XOS not only exhibit some specific physicochemical properties such as excellent water solubility and high temperature resistance, but also have a variety of functional biological activities including anti-inflammation, antioxidative, antitumor, antimicrobial properties and so on. Numerous studies have revealed in the recent decades that XOS can be applied to many food and feed products and exert their nutritional benefits. XOS have also been demonstrated to reduce the occurrence of human health-related diseases, improve the growth and resistance to diseases of animals. These effects open a new perspective on XOS potential applications for human consumption and animal production. Herein, this review aims to provide a general overview of preparation methods for XOS, and will also discuss the current application of XOS to human and animal health field.


Author(s):  
Christl Li ◽  
Sean B. Cash ◽  
Julie Lesnik ◽  
Timothy S. Griffin ◽  
Joel Mason ◽  
...  

Abstract Although research has demonstrated the positive nutritional value and environmental benefits associated with edible insect consumption, several factors challenge the growth and development of the edible insect industry for human consumption in the US and Canada. Cultural and psychological factors account for much of the aversion US and Canadian consumers display. The absence of specific regulation also constitutes a structural barrier to more widespread production and sale of edible insects. Compared to the US, the European Union has a more developed edible insect industry and has enacted legislation that removes some of the barriers. As consumer awareness of the putative health benefits of edible insects increases, more comprehensive regulations may emerge to keep pace with the growth of this industry. Overall, a multi-disciplinary approach that addresses both benefits and barriers to consumption is needed to facilitate a robust market for edible insects in the US and Canada.


2021 ◽  
Vol 6 (1) ◽  
pp. 24-36
Author(s):  
Raquel P. F. Guiné ◽  
Paula Correia ◽  
Catarina Coelho ◽  
Cristina A. Costa

Abstract This review is focused on the utilization of insects as a new opportunity in food and feed products, including their commercialization both in traditional and new markets. It has been suggested that insects are considerably more sustainable when compared with other sources of animal protein, thus alleviating the pressure over the environment and the planet facing the necessity to feed the world population, constantly increasing. Many chefs have adhered to the trend of using insects in their culinary preparations, bringing insects to the plan of top gastronomy, highlighting their organoleptic qualities allied to a recognized high nutritional value. However, in some markets, insects or insect-based products are not readily accepted because of neophobia and disgust. Moreover, the insect markets, farming, and commercialization are experiencing a huge growth, in which the domain of animal feed is undoubtedly a very strong component. The future of insects as human food and animal feed seems promising in view of the recent trends and challenges.


2017 ◽  
Vol 119 (9) ◽  
pp. 2027-2039 ◽  
Author(s):  
Fanny Barsics ◽  
Rudy Caparros Megido ◽  
Yves Brostaux ◽  
Catherine Barsics ◽  
Christophe Blecker ◽  
...  

Purpose Broader acceptance of entomophagy (i.e. human consumption of insects) will depend on factors that impact consumers’ perceptions of edible insects. The purpose of this paper is to examine how a broad-based information session would affect consumers’ perceptions and attitudes about an edible insect product. Design/methodology/approach During a taste testing session, preceded or followed by an information session about entomophagy, participants rated the organoleptic characteristics of two bread samples on nine-point hedonic scales. The two bread samples were identical, though one was faux-labelled as containing an insect product. Findings Generalised linear model (GLM) analysis showed effects of gender, information session exposure, entomophagy familiarity, and entomophagy experience on participants’ ratings of the samples. Wilcoxon-Mann-Whitney ranked sum tests showed that appearance, flavour, and overall liking were significantly better rated for the bread sample labelled as insect free by participants who attended the presentation a priori. Potential ways to improve information content and delivery in favour of encouraging dietary shifts are discussed. Practical implications This study shows that information about insect-based products could change consumers’ perceptions of such products. The results provide clues regarding how the food industry can adapt communication for target audiences. Originality/value Actual edible insect products were not used in this study. Paradoxically, it is the first to show the impact of an information session on the acceptability of edible insect products, by revealing participants’ perceptual expectations.


Author(s):  
Saikat Biswas

Cereal crops such as maize, wheat, sorghum and pearl millet are important for human consumption due to their nutritional benefits. These cereals play pivotal roles to meet world’s food demand. However, maintenance of food security particularly in the circumstance of changing climate, constantly urges for modification of agro-techniques and one such modification is the incorporation of transplanting technique in these cereals as an alternative under a non-practicable situation of direct sowing. Transplanting is a method of transferring seedlings grown in nursery or others to the field. It has been already found to shorten the crop duration and improve germination, plant stand, seed and seedling quality parameters, growth, yield and economic profitability of these cereals. Besides, research findings are also available stating that transplanting helps these cereals to cope up with vagaries of weather and to exhibit greater radiation and water use efficiencies and suppression of weeds. Outcomes of transplanting are however dependent on various factors like methods of nursery raising, the variety used, mode of planting, age of seedlings etc. In spite of these prospects, transplanting technique is not so popular in these cereals due to poor dissemination, discouraging research findings, pest and disease problems, lack of suitable package of practices etc. Therefore, focuses are to be given in conducting more and more research trials to confirm its location and situation wise efficacy and also in developing and disseminating a suitable package of practices of transplanting accordingly.


2021 ◽  
pp. 1-12
Author(s):  
R.E.Y. Seho ◽  
R.L. Monteiro ◽  
J. De Dea Lindner ◽  
M. Miotto ◽  
B.A.M. Carciofi ◽  
...  

Larvae of Tenebrio molitor (yellow mealworm; YM) are an alternative to conventional animal protein as food and feed thanks to their high nutritional value and low environmental impact for production. Since some studies have reported high water activity (aw) with different microbial contamination levels, blanching and drying can be employed to reduce microbial load, enzymatic activity, moisture content, and water activity, ensuring safety and preserving YM for longer periods. This study applied rinsing or blanching followed by vacuum- or multiflash drying, aiming to preserve YM by reducing aw and the microbial load, enabling its use as food and feed. The processing impact on YM colour was evaluated, and they were also subjected to an Escherichia coli contaminated wheat bran to perform a challenge test to evaluate the effectiveness of the decontamination. Drying curves were determined for each situation. Multiflash drying procedure was faster than vacuum drying for reducing YM moisture. Additionally, blanched samples required a shorter period to reach the targeted water activity (0.2-0.3) than rinsed samples. Blanching plus vacuum drying reduced more than 5 log E. coli load in YM in the challenge test. Vacuum drying preserved YM brightness the most. In conclusion, this study showed that drying could provide shelf-stable YM. Besides, only 15 s of blanching before drying gives better brightness and leads to a greater microbial reduction after a relatively short drying time.


2020 ◽  
Vol 13 ◽  
pp. 1-8
Author(s):  
Irina Zmeu ◽  
Elena Mirela Cucu ◽  
Alina Alexandra Dobre ◽  
Hellene Casian

Mycotoxin contamination represents a clear public health concern. In this context, a maize survey was conducted in Romania, to monitor the occurrence of total aflatoxins in maize samples collected during the 2019 growing season from fields located in all counties. A total of 95 maize samples were collected along with information regarding the specific location of fields, the applied agronomic practices and cropping systems. ELISA method was used for the quantification of AFs. The results showed 88 contaminated samples. Only one sample registered aflatoxin levels higher than the limit of 10.00 μg/kg, settled by the Commission Regulation (EC) No 1881/2006 for maize to be subjected to soring or other physical treatment before human consumption or use as an ingredient in foodstuffs. The highest AFs level was 77.59 μg/kg, noted by a maize sample from Argeș County (the South-Muntenia development region, macro region 3). When referring to the analysed samples, the total aflatoxin contamination was independent of the type of hybrid, but strongly influenced by the pedo-climatic differences between counties. The southern counties proved to represent critical risk areas for aflatoxin contamination when referring to maize crops. These results highlight the importance of an effective and sustainable mycotoxin management along the food and feed chain, as well as the need of mapping the mycotoxin risk areas.


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