open access

https://hdl.handle.net/2115/90419

Extracted tissue-specific atelocollagens have distinctive textural properties

英語

texture

2022-08-26

John Wiley & Sons

Journal of Texture Studies

53(5)

654-661

Food texture is a very important factor for elderly persons, children, and patients who have difficulty swallowing. Collagen and its hydrolysis product, gelatin, are used as ingredients in foods, dietary supplements, and medical materials. In this study, we extracted atelocollagen from nonedible porcine tissues, including ear, nose, and skin, and analyzed the biophysical properties of each tissue. Extracted whole auricle collagen (AEC) showed superior springiness, while only the skin region of auricle collagen (ASC) showed superior hardness, springiness, and brittleness. Body skin collagen showed high hardness but low springiness. In a shear stress test, ASC gels showed high shear strength, and their strains coincided with hardness in a textural examination, while nose and AEC showed low maximum strains. In viscosity, the auricular collagens showed higher viscosity regardless of the region of the ear. Fibril formation in collagen from each tissue and organ varied a great deal in width and morphology. We found that the same type of collagen had a unique texture and viscosity under physiological conditions depending on the tissue or organ of extraction. The results show that the collagen extracted from each organ has a unique texture and unique possibilities to serve as an ingredient in food or supplements.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: Nakamura S, Hoshi H, Wakabayashi K, Seki M, Watanabe M, Watanabe M, Inaba H, Ushijima N, Akasaka T. Extracted tissue-specific atelocollagens have distinctive textural properties. J Texture Stud. 2022 Sep;53(5):654-661. Epub 2022 Sep 26., which has been published in final form at https://doi.org/10.1111/jtxs.12715. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

0022-4901