Matches in SemOpenAlex for { <https://semopenalex.org/work/W81400769> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W81400769 endingPage "100" @default.
- W81400769 startingPage "93" @default.
- W81400769 abstract "Publisher SummaryThis chapter reviews various types of proposed biohydrogen processes, including dark fermentations, along with the potentially limiting factors. Several mechanisms by which photosynthesis could yield hydrogen (H2)—such as direct biophotolysis, indirect biophotolysis, and photofermentations—are also examined in the chapter. The basis for any biological H2-producing system is an enzyme that reduces protons to hydrogen. Currently, the three known enzymes that carry out this reaction are nitrogenase, Fe-hydrogenase, and NiFe hydrogenase. The catalytic activity of these enzymes varies enormously, and it is in theory possible that at least in some cases the quantity or activity of the H2 evolving enzyme could limit the overall process. In theory, photosynthetic efficiencies could be as high as 10% (conversion of total light energy into product). However, under full sunlight conditions, up to 90% of the photons captured by the photosynthetic apparatus are not used in productive photosynthesis but rather decay as heat or fluorescence. Improving photosynthetic efficiencies is essential to the realization of practical microalgal processes for H2 production. Fermentative processes present an interesting yet largely unexplored avenue for the biological production of H2. One fermentation of interest would be to harness the endogenous metabolic machinery of algal cells to quantitatively convert stored carbohydrate (starch or glycogen in green algae and cyanobacteria, respectively) to H2 in a strictly dark reaction. In this case, the critical factor is the amount of H2 that can be produced per mole of substrate." @default.
- W81400769 created "2016-06-24" @default.
- W81400769 creator A5037037551 @default.
- W81400769 date "2004-01-01" @default.
- W81400769 modified "2023-09-30" @default.
- W81400769 title "Fundamentals and Limiting Processes of Biological Hydrogen Production" @default.
- W81400769 cites W102994159 @default.
- W81400769 cites W122930039 @default.
- W81400769 cites W1545707593 @default.
- W81400769 cites W1964981428 @default.
- W81400769 cites W1968447862 @default.
- W81400769 cites W197733770 @default.
- W81400769 cites W1996290254 @default.
- W81400769 cites W2016682577 @default.
- W81400769 cites W2031136213 @default.
- W81400769 cites W2037871094 @default.
- W81400769 cites W2048179590 @default.
- W81400769 cites W2068115110 @default.
- W81400769 cites W2104796556 @default.
- W81400769 cites W2110157318 @default.
- W81400769 cites W2130364058 @default.
- W81400769 cites W2152375584 @default.
- W81400769 cites W43833614 @default.
- W81400769 cites W59865229 @default.
- W81400769 cites W64268744 @default.
- W81400769 doi "https://doi.org/10.1016/b978-008044356-0/50008-7" @default.
- W81400769 hasPublicationYear "2004" @default.
- W81400769 type Work @default.
- W81400769 sameAs 81400769 @default.
- W81400769 citedByCount "3" @default.
- W81400769 countsByYear W814007692020 @default.
- W81400769 crossrefType "book-chapter" @default.
- W81400769 hasAuthorship W81400769A5037037551 @default.
- W81400769 hasConcept C127413603 @default.
- W81400769 hasConcept C162324750 @default.
- W81400769 hasConcept C175444787 @default.
- W81400769 hasConcept C178790620 @default.
- W81400769 hasConcept C183696295 @default.
- W81400769 hasConcept C185592680 @default.
- W81400769 hasConcept C188198153 @default.
- W81400769 hasConcept C202189072 @default.
- W81400769 hasConcept C2778348673 @default.
- W81400769 hasConcept C512968161 @default.
- W81400769 hasConcept C78519656 @default.
- W81400769 hasConceptScore W81400769C127413603 @default.
- W81400769 hasConceptScore W81400769C162324750 @default.
- W81400769 hasConceptScore W81400769C175444787 @default.
- W81400769 hasConceptScore W81400769C178790620 @default.
- W81400769 hasConceptScore W81400769C183696295 @default.
- W81400769 hasConceptScore W81400769C185592680 @default.
- W81400769 hasConceptScore W81400769C188198153 @default.
- W81400769 hasConceptScore W81400769C202189072 @default.
- W81400769 hasConceptScore W81400769C2778348673 @default.
- W81400769 hasConceptScore W81400769C512968161 @default.
- W81400769 hasConceptScore W81400769C78519656 @default.
- W81400769 hasLocation W814007691 @default.
- W81400769 hasOpenAccess W81400769 @default.
- W81400769 hasPrimaryLocation W814007691 @default.
- W81400769 hasRelatedWork W1977619380 @default.
- W81400769 hasRelatedWork W2370055910 @default.
- W81400769 hasRelatedWork W2376476039 @default.
- W81400769 hasRelatedWork W2386929505 @default.
- W81400769 hasRelatedWork W2460072049 @default.
- W81400769 hasRelatedWork W3039114642 @default.
- W81400769 hasRelatedWork W3157784819 @default.
- W81400769 hasRelatedWork W39994022 @default.
- W81400769 hasRelatedWork W4312126977 @default.
- W81400769 hasRelatedWork W60654597 @default.
- W81400769 isParatext "false" @default.
- W81400769 isRetracted "false" @default.
- W81400769 magId "81400769" @default.
- W81400769 workType "book-chapter" @default.