Improving collagen processing towards a greener approach: current progress

Abstract

The high market demand for collagen as a biomaterial has prompted additional studies into improved methods of collagen extraction without sacrificing the overall quality of collagen. The use of clean technology for sustainable collagen extraction has recently gained popularity due to its efficiency and minimal waste production. This review focuses on improving collagen processing based on three essential steps: pre-treatment (fermentation, high shear mechanical homogenisation, ultrasound), extraction (ultrasound-assisted extraction, microwave-assisted extraction, physical-aided extraction, and supercritical fluid technology), and recovery (ultrafiltration). This review also summarises the benefits and drawbacks of the emerging green technologies used in each step to obtain collagen. This study shows that these clean technologies eliminate the need for excessive chemicals and shortens processing time. However, each collagen-processing step must be carefully controlled to preserve structural integrity, which influences collagen's properties and hence its uses for further applications.

The application of microwave and ultrasound technologies for extracting collagen from European plaice by-products

“…The study highlights the potential value of the three studied fractions for collagen extraction. The results support the findings of Mohamad Razali et al (2023), stating that green extraction methods such as UAE and MAE increase the extraction efficiency of collagen. Moreover, Mohamad Razali et al (2023) review the current progress of green extraction methods for collagen and state that MAE is a versatile technology, enabling the transfer of technology from small (lab) to big (industry) scale (Destandau et al, 2013).…”

“…The results support the findings of Mohamad Razali et al (2023), stating that green extraction methods such as UAE and MAE increase the extraction efficiency of collagen. Moreover, Mohamad Razali et al (2023) review the current progress of green extraction methods for collagen and state that MAE is a versatile technology, enabling the transfer of technology from small (lab) to big (industry) scale (Destandau et al, 2013). Furthermore, Mohamad Razali et al (2023) highlights that UAE and MAE have been successfully applied in multiple studies to increase the extraction efficiency of collagen, hereby stressing the significance of these green extraction methods.…”

“…Moreover, Mohamad Razali et al (2023) review the current progress of green extraction methods for collagen and state that MAE is a versatile technology, enabling the transfer of technology from small (lab) to big (industry) scale (Destandau et al, 2013). Furthermore, Mohamad Razali et al (2023) highlights that UAE and MAE have been successfully applied in multiple studies to increase the extraction efficiency of collagen, hereby stressing the significance of these green extraction methods. The study carried out by Shaik et al (2021) on UAE of stingray skin collagen found UAE to increase the collagen yield, which agrees with the present study, underlining skin as a high collagen and high protein fraction with great potential for further utilization.…”

Green Chemistry to Valorize Seafood Side Streams: An Ecofriendly Roadmap toward Sustainability

“…The green method required much a lower extraction time and gave a yield 2.5 times higher than the conventional method . A greener approach for collagen extraction involving multiple processes including fermentation, high shear mechanical homogenization, and extraction assisted by nonthermal methods avoided the use of chemicals and shortened processing time . Collagen type I from codfish skin was extracted by an aqueous DES solution containing urea and lactic acid in a 1:2 molar ratio .…”

“…82 A greener approach for collagen extraction involving multiple processes including fermentation, high shear mechanical homogenization, and extraction assisted by nonthermal methods avoided the use of chemicals and shortened processing time. 83 Collagen type I from codfish skin was extracted by an aqueous DES solution containing urea and lactic acid in a 1:2 molar ratio. 84 An integrated process of UAE for 5 min at a pH of 13.0 in the presence of 250 mg of chitosan as a flocculant recovered up to 90% proteins from lobster heads.…”