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1. |
Record Nr. |
UNINA9910367746203321 |
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Autore |
Fujiki Michiya |
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Titolo |
Possible Scenarios for Homochirality on Earth |
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Pubbl/distr/stampa |
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MDPI - Multidisciplinary Digital Publishing Institute, 2019 |
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Descrizione fisica |
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1 electronic resource (318 p.) |
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Materiale a stampa |
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Livello bibliografico |
Monografia |
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In 1978, Fred Hoyle proposed that interstellar comets carrying several viruses landed on Earth as part of the panspermia hypotheses. With respect to life, the origin of homochirality on Earth has been the greatest mystery because life cannot exist without molecular asymmetry. Many scientists have proposed several possible hypotheses to answer this long-standing L-D question. Previously, Martin Gardner raised the question about mirror symmetry and broken mirror symmetry in terms of the homochirality question in his monographs (1964 and 1990). Possible scenarios for the L-D issue can be categorized into (i) Earth and exoterrestrial origins, (ii) by-chance and necessity mechanisms, and (iii) mirror-symmetrical and non-mirror-symmetrical forces as physical and chemical origins. These scenarios should involve further great amplification mechanisms, enabling a pure L- or D-world. |
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2. |
Record Nr. |
UNINA9910637782103321 |
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Autore |
De Moura Bell Juliana Maria Leite Nobrega |
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Titolo |
Extraction and Fractionation Processes of Functional Components in Food Engineering |
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Pubbl/distr/stampa |
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Basel, : MDPI - Multidisciplinary Digital Publishing Institute, 2022 |
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ISBN |
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Descrizione fisica |
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1 electronic resource (122 p.) |
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Soggetti |
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Technology: general issues |
History of engineering & technology |
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Materiale a stampa |
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This Special Issue on the "Extraction and Fractionation Processes of Functional Components in Food Engineering" aims to bring together novel advances in the development and application of innovative processing strategies to extract, isolate, and modify food compounds to produce ingredients and foods with improved nutritional, functional, and biological properties. Topics include: - Development of innovative processing strategies to extract, modify, and recover food compounds. - Effects of industrial processes on the functionality and biological activities of food compounds. - Bioconversion of agricultural waste streams and food byproducts into added valuable compounds. - Challenges associated with processing scale-up. |
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