Paper
18 October 2022 Effect of ultrahigh pressure treatment on nutritional composition and micromorphology of garlic
Sheng Zhicun, Chen Xiaolan
Author Affiliations +
Proceedings Volume 12349, International Conference on Agri-Photonics and Smart Agricultural Sensing Technologies (ICASAST 2022); 123490V (2022) https://doi.org/10.1117/12.2657199
Event: International Conference on Agri-Photonics and Smart Agricultural Sensing Technologies (ICASAST 2022), 2022, Zhengzhou, China
Abstract
This study aimed at evaluating the effect of different ultrahigh pressures (UHPs) (non-pressurized, 100, 200, 300, 400, 500 MPa) treatment on nutritional composition and micromorphology of garlic. The results showed that the total sugar content decreased compared with that in non-pressurized, but was not significantly changed among different UHPs treatment (P<0.05); However, the reducing sugar content increased gradually, and reached the highest value at 500 MPa. Both the content of protein and total phenol were significantly higher than that in non-pressure (P⪆0.05); the protein content initially rose and then fell with increasing pressure, and reached the highest at 300 MPa. Change of total phenol content decreased with increasing pressure. The alliin content was all reduced after UHPs treatment. For micromorphology, the starch particles of vascular bundle cells on the surface of garlic were broken and dissolved, and the surface appeared damage indentation after treating with different UHPs compared with the non-pressurized group; but the infrared spectroscopy was shown no difference. The study will provide a reference for UHP to improve the quality of garlic or other foods.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sheng Zhicun and Chen Xiaolan "Effect of ultrahigh pressure treatment on nutritional composition and micromorphology of garlic", Proc. SPIE 12349, International Conference on Agri-Photonics and Smart Agricultural Sensing Technologies (ICASAST 2022), 123490V (18 October 2022); https://doi.org/10.1117/12.2657199
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KEYWORDS
Proteins

Absorption

Infrared spectroscopy

Particles

Scanning electron microscopy

Infrared radiation

Spectroscopy

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