Naslov
A step toward complete utilization of eggshell waste

Autori
Strelec, Ivica ; Aladić, Krunoslav ; Ostojčić, Marta ; Harja, Sugato ; Kim, Hoe-Joon ; Maravić, Nikola ; Stanojev, Jovana ; Budžaki, Sandra

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of the 2nd International Conference on Advanced Production and Processing / Šereš, Zita - Novi Sad : Tehnološki fakultet Univerziteta u Novom Sadu, 2022, 196-196

ISBN
978-86-6253-160-5

Skup
2nd International Conference on Advanced Production and Processing (ICAPP 2022)

Mjesto i datum
Novi Sad, Srbija, 20.10.2022. - 22.10.2022

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
eggshell waste utilization ; adherent egg white protein ; eggshell membranes ; calcium salts

Sažetak
One of the five major challenges of sustainable waste management in the agri-food industry by using the "zero-waste" model of the circular economy is the development of innovative waste transformation techniques for the production of chemicals, fine chemicals, bioactive compounds, enzymes and functional materials. These products have at least twice added value of products obtained from currently dominant outdated waste management strategies which are not in accordance with sustainable development. Eggshell waste is one on the wastes produced by agri-food industry whose majority instead being re-used, ends in landfill sites, additionally burdening the environment. Situation is quite concerning if one considers that at least 7, 894, 962 t of eggshell waste was generated annually worldwide of which 777, 000 t in the European Union in 2018. Keeping in mind current state of eggshell waste utilization/landfilling and the need for the development of innovative waste transformation techniques, we have designed “3 from 1” process of complete utilization of eggshell waste oriented toward “zero-waste” model. The process included eggshell waste washing, acid solvation and few additional steps for preparation of powdered calcium salts and eggshell membranes. After complete utilization of eggshell waste: clarified adherent egg white protein solution, three different types of eggshell membranes and three different calcium salts: calcium chloride, calcium acetate and calcium hydrogen phosphate of high purity was produced. In addition, spry-drying for the production of anhydrous calcium chloride was implemented. Based on results obtained, it can be concluded that designed “3 from 1” process has great potential to be used not only for the complete utilization of eggshell waste, but also for the production of high-value added products from it.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA