Circular approach in fish industries
Perä, Markus (2019)
Perä, Markus
2019
All rights reserved. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2019111421181
https://urn.fi/URN:NBN:fi:amk-2019111421181
Tiivistelmä
The growing population requires a lot of food in order to sustain itself. Therefore, also, more fish need to be caught and farmed. Since a large amount of fish captured cannot be used commercially, it is usually thrown away, which in turn can be hazardous to the environment not to mention sea birds. By catch is also caught when fishing. A circular approach to this fish waste means seeing this waste as something that should be used instead of being thrown away. Usually fish waste if not discharged overboard, is converted into fish meal or fish oil. It is often costly and time-consuming. The heterogeneous nature of fish waste is an added challenge because finding solutions that work all the time with all types of fish waste is not possible.
The lab-scale applications mentioned in this thesis include, but are not limited to, turning fish waste into fertilizer, feed, nutrients, peptides, enzymes, hydrolysates, biomaterials, wastewater treatment products, and biofuels. This thesis was a literature review, and no lab work was donewhen making it.Fertilizer and feed are relatively straight-forward to do, but they require more time to be aged than their commercial counterparts. Nutrients, peptides, hydrolysates, and enzymes can also be extracted from the fish waste; however, in the case of mincing the fish waste it can only replace part of the fish meat.
Peptides showed interesting properties but required more research to be identified precisely. Hydroly-sates could be used for capturing moisture in the food industry, but their inner bitterness needs to be masked beforehand. Enzymes can be extracted, but their performance varies; an enzyme for dehairing leather works great, but an enzyme to make cheese creates a cheese that cannot hold moisture inside it. Fish waste can also be added into packaging materials, where the biodegradability increase, but this comes at the cost of weaker strength and an inability to hold moisture inside the package. Their properties can be improved by adding additional substances into the material. Fish waste can also be used to manufacture sorbents for treating wastewater and in the articles they could remove, for example, azodyes and lead. Fish waste can also be converted into biofuels. However, they increase some emissions, while simultaneously reducing others and they cannot be stored as long as conventionally made diesel. Fish waste has many potential applications, but their large-scale implementation requires massive investments in a circular economy.
The lab-scale applications mentioned in this thesis include, but are not limited to, turning fish waste into fertilizer, feed, nutrients, peptides, enzymes, hydrolysates, biomaterials, wastewater treatment products, and biofuels. This thesis was a literature review, and no lab work was donewhen making it.Fertilizer and feed are relatively straight-forward to do, but they require more time to be aged than their commercial counterparts. Nutrients, peptides, hydrolysates, and enzymes can also be extracted from the fish waste; however, in the case of mincing the fish waste it can only replace part of the fish meat.
Peptides showed interesting properties but required more research to be identified precisely. Hydroly-sates could be used for capturing moisture in the food industry, but their inner bitterness needs to be masked beforehand. Enzymes can be extracted, but their performance varies; an enzyme for dehairing leather works great, but an enzyme to make cheese creates a cheese that cannot hold moisture inside it. Fish waste can also be added into packaging materials, where the biodegradability increase, but this comes at the cost of weaker strength and an inability to hold moisture inside the package. Their properties can be improved by adding additional substances into the material. Fish waste can also be used to manufacture sorbents for treating wastewater and in the articles they could remove, for example, azodyes and lead. Fish waste can also be converted into biofuels. However, they increase some emissions, while simultaneously reducing others and they cannot be stored as long as conventionally made diesel. Fish waste has many potential applications, but their large-scale implementation requires massive investments in a circular economy.
Kokoelmat
Samankaltainen aineisto
Näytetään aineisto, joilla on samankaltaisia nimekkeitä, tekijöitä tai asiasanoja.
-
Ahti’s bounty on your plate. Fish & Eat – development programme for the food services of fishing tourism entrepreneurs
Harmoinen, Taina; Jokela, Mikko; Hostikka, Päivi; Koljonen, Eeva; Kaakkois-Suomen ammattikorkeakoulu
Xamk Inspire 13 (South-Eastern University of Applied Sciences, 2019)Finland’s clean waters are a veritable treasure trove for the fishing enthusiast. Caught fish can be cooked for the fisher herself, maybe even during the fishing trip. Tasty inland water fish are an essential component of ... -
Sustainability Plan for The Lion Fish Hostel
Koskimäki, Jenna; Norjos, Nea (2019)As the world is waking up to the reality of the climate change, environmental issues are becoming more and more important and demanded both by businesses as well as customers. Tourism has a great responsibility in global ... -
Ahdin antimet lautaselle. Fish & Eat – kalastusmatkailuyrittäjien ruokapalvelujen kehittäminen -hanke
Harmoinen, Taina; Sahama, Pekka; Jokela, Mikko; Hostikka, Päivi; Koljonen, Eeva; Kaakkois-Suomen ammattikorkeakoulu
Xamk Inspiroi 12 (Kaakkois-Suomen ammattikorkeakoulu, 2019)Matkailutuotteiden kehittämisessä korostuu elämyksellisyys ja tuotteiden muunneltavuus asiakaskohderyhmän mukaan. Kalastusmatkailu – vai pitäisikö sanoa matkailukalastus – on vasta kehittymässä tuotteistetuksi palveluksi ...