Hans Blonk, owner and managing director of Blonk Consultants, is a biologist graduated from Leiden University. After his studies he got interested in the Life Cycle Assessments (LCA) method and was one of the developers of the first LCA methodology in the Netherlands. Since then the main focus of his career has been the environmental assessment of agri-food products. Over the years he has made important contributions to the development of LCA and Carbon Footprinting methods for agri-food products. In 1999 he established his own business. Blonk Consultants now consists of seventeen specialists in the impact assessment of food products and is one of the leading companies in this field worldwide.
From 2013 to 2017 he worked as a veterinarian. In this period, he has gained broad international experience with advising animal producing companies about the breeding, feeding, housing and welfare of animals. At the same time, he also started my MBA studies. When finishing his MBA degree, he was also able to advice companies how to develop their businesses in the agri-food Industry.
In his current role as Director R&D at Protifarm, he is responsible for the research activities (breeding, rearing and processing) as well as for monitoring the quality of the production facility. The main goal is to get the whole operation more efficient and sustainable. Beside his occupation at Protifarm, he is also board member of the Royal Dutch Association of Animal health. In that role, he represents the non-practicing veterinarians.
"New opportunities and applications for animal proteins - product and process optimization on a kilo scale in the lab".
The efficient use of all components from animal slaughtering is of great importance for the food industry after the recycling of the components. Most of the unused components with high protein and fat content are processed into animal feed and pet food. Mainly fats and oils from category 2 and 3 by-products are also used in technical applications such as oleochemicals, fuel and like bone mealsas fertilizer.
The process development for obtaining proteins, fats and oils in the kilo-lab and for product optimization for technical processeswill be illustrated bycurrent developments.
The development for the extraction of various proteins from bone raw materials and processed animal protein for direct use in biopolymers is being carried out jointly with the Fraunhofer IAP, Potsdam. By varying extraction and hydrolysis conditions, different soluble proteins are obtained, concentrated and dried. Subsequently, the proteins are processed into mixed plastics in extrusion systems.
The extraction and use of fats with high FFA and emulsified protein and fat for the fermentation of polyhydroxyalkanoates (PHA) is carried out in cooperation with TU Berlin and Fraunhofer IPK. Residual fats are obtained from by-products and used for the microbial synthesis of PHA. PHA is extracted from the cells and used in injection molding.
The extraction of protein hydrolysates by thermo-pressure hydrolysis of K2/K3 raw materials for use in the fermentation of lactic acid for PLA production was carried out jointly with ATB Potsdam-Bornim. Through the targeted adaptation and mixing of protein hydrolysates, Pepton-like fermentation raw materials for lactic acid production were produced and tested.
Further development examples will be briefly presented and discussed.