Results 1 to 10 of about 1,536 (101)
Foods, 2022 The nitrosyl–heme complex is considered the pigment responsible for the development of reddish colour in cooked hams. However, the same reddish colour was observed in a nitrite-free product elaborated with polyphenols, suggesting the presence of other ...
Claudia Giménez-Campillo +6 more
doaj +3 more sources
Zn protoporphyrin IX is formed not from heme but from protoporphyrin IX [PDF]
Meat Science, 2007 We examined the effects of exogenous myoglobin, a bivalent chelator, and nitrite on Zn protoporphyrin IX (ZPP) formation by using model systems. ZPP was formed in a model solution without addition of exogenous myoglobin. After incubation, the amount of ZPP in a model solution was increased but that of heme was not decreased compared with the amounts ...
Takanori Nsihimura, Jun-Ichi Wakamatsu
exaly +4 more sources
The effect of carbon monoxide on meiotic maturation of porcine oocytes [PDF]
PeerJ, 2021 Oxidative stress impairs the correct course of meiotic maturation, and it is known that the oocytes are exposed to increased oxidative stress during meiotic maturation in in vitro conditions.
David Němeček +4 more
doaj +2 more sources
Isolation, Purification and Structural Identification of Red Pigment from Nuodeng Ham [PDF]
Shipin Kexue, 2023 In order to explore the chemical nature of red pigment in Nuodeng ham, the red pigment was extracted with 75% acetone aqueous solution and purified using a C18 solid phase extraction column, and its chemical structure was characterized by using ...
YANG Zijiang, ZHANG Lihong, LIAO Guozhou, TIAN Mei, LÜ Donglin, HE Ying, GE Changrong, WANG Guiying
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Nanomaterials, 2022 Caffeic acid is an antioxidant that has been widely been related to the health benefits of people in recent years. In this paper, the amino side chains of chitosan (CS) were modified with protoporphyrin IX by amide cross-linking, and then Zn ions were ...
Bingkai Han +3 more
doaj +1 more source
Protoporphyrin IX Binds to Iron(II)-Loaded and to Zinc-Loaded Human Frataxin
Life, 2023 (1) Background: Human frataxin is an iron binding protein that participates in the biogenesis of iron sulfur clusters and enhances ferrochelatase activity.
Ganeko Bernardo-Seisdedos +4 more
doaj +1 more source
A photosensitizing fusion protein with targeting capabilities
Biomolecular Concepts, 2022 The photodynamic treatment for antimicrobial applications or anticancer therapy relies on reactive oxygen species generated by photosensitizing molecules after absorption of visible or near-infrared light.
Bruno Stefano +8 more
doaj +1 more source
Accumulation of protoporphyrin IX and Zn protoporphyrin IX in Cyanidium caldarium [PDF]
Proceedings of the National Academy of Sciences, 1981 In vivo fluorescence studies of Cyanidium caldarium mutants grown in the dark in dextrose-containing media have shown that these organisms accumulate protoporphyrin IX.
K, Csatorday, R, Maccoll, D S, Berns
openaire +2 more sources
Radical Mediated Rapid In Vitro Formation of c-Type Cytochrome
Biomolecules, 2022 A cytochrome c552 mutant from Thermus thermophilus HB8 (rC552 C14A) was reported, where the polypeptide with replaced Cys14 by alanine, overexpressed in the cytosol of E. coli.
Sheikh Muhammad Ibrahim +4 more
doaj +1 more source
Anti-apoptotic properties of carbon monoxide in porcine oocyte during in vitro aging [PDF]
PeerJ, 2017 If fertilization of matured oocyte does not occur, unfertilized oocyte undergoes aging, resulting in a time-dependent reduction of the oocyte’s quality. The aging of porcine oocytes can lead to apoptosis.
David Němeček +4 more
doaj +2 more sources