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wealth from waste-part 5
- 1. Wealth from waste: Recycling Projects By: F. Heidarizadeh Nov. 2017 1 Fariba Heidarizadeh
- 3. 2. Animal origin: 3 Fariba Heidarizadeh
- 4. a. Meat products 4 Fariba Heidarizadeh
- 5. MEAT PRODUCTS 1- Blood is one of the most problematic by-products of the meat industry due the large amount produced (3–4 L per pig, up to 18 L per bovine) and its high polluting capacity. However, blood has high content of good-quality proteins (around 15–18% in wet base). 2- Whole proteins from plasma (as albumin, fibrinogen, and globulins) can be easily separated by chemical precipitation and then dried. Such proteins have relevant functional properties like gelation, foaming, emulsifying, or thickeners, which allow them to be utilized in the food industry as dietary supplements 3- More recent applications of blood proteins include the development of products with enhanced functional properties and novel biological activities such as antioxidant, antimicrobial , mineral- binding, antigenotoxic , opioid, or antihypertensive. 5 Fariba Heidarizadeh
- 9. Demand for bone glue expected to rise significantly among orthopedic surgeons and hospitals in Europe There is an increasing adoption of gelatin and bone glue in orthopedic surgeries in Europe and this is expected to boost the demand for gelatin and bone glue in the region over the forecast period. Also, the surging demand for surgical sealants in orthopedics can be attributed to high effectiveness and strong bond strength. Growing usage of bone glue for osteoporotic spine is anticipated to drive the demand for bone glue in the Europe gelatin and bone glue market over the forecast period. In terms of value, the Europe gelatin and bone glue market is estimated to expand from a value of US$ 155.9 Mn in 2015 to a market valuation of US$ 260.5 Mn by 2024 end at a CAGR of 6.0% during the period of assessment. 9 Fariba Heidarizadeh
- 19. Collagen is the major component of mammalian connective tissue, which accounts for 30% of total protein weight. The most abundant sources of gelatin are pig skin (46%), bovine hide (29%), and pork and cattle bones (23%). Feather and hair have also a high protein content, but their low content of certain amino acids (Lys, Met, His, and Trp) makes them less attractive for feed supplementation, as artificial addition of amino acids or blood complementation is required. A promising approach for feathers and hair is as culture media for screening keratinolytic bacteria aiming to characterize and recover new keratinase enzymes. Such enzymes have a potential use in leather industry for the development of more ecofriendly hair removal processes. 19 Fariba Heidarizadeh