Antioxidant activity of chlorophylls and their derivatives (Record no. 44985)

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fixed length control field 02092nam a2200241Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625140637.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-10753
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245 10 - TITLE STATEMENT
Title Antioxidant activity of chlorophylls and their derivatives
490 0# - SERIES STATEMENT
Volume/sequential designation Food Research International, 38(8-9), p.885-891, 2005
520 3# - SUMMARY, ETC.
Summary, etc. The antioxidant activity of six natural isolated chlorophyll derivatives and Cu-chlorophyllin was investigated by measuring their protective action against lipid oxidation. For this, the b-carotene bleaching method and the stable radical 2,2-diphenyl-1-picryldrazyl (DPPH)scavenging assay were employed. The results obtained by the b-carotene bleaching method showed that all chlorophyll derivatives presented a dose-dependent response. Pheophorbide b and pheophytin b were the strongest natural antioxidant compounds, whose activities were comparable to BHT. The high antioxidant activity found for pheophorbide b, in comparison to pheophorbide a, demonstrated the importance of the aldehyde group for functionality. On the other hand, by the DPPH assay, all natural pigments showed low antioxidant activity when compared to Trolox. Cu-chlorophyllin, tested by both methods, presented a higher antioxidant activity than that of natural chlorophylls, showing the importance of the nature of the chelated metal in the porphyrin ring. The mechanism of antioxidant activity displayed by the natural chlorophyll derivatives does not seem to be based on the ability to donate hydrogen but maybe, on the protection of linoleic acid against oxidation and/or preventing ecomposition of hydroperoxides
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element ANTIOXIDANT ACTIVITY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CHLOROPHYLL DERIVATIVES
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element B-CAROTENE BLEACHING METHOD
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DPPH
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Lanfer-Marquez, U.M.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Barros, R.M.C.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Sinnecker, P.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1GB0wYbv2OoNNcYV9Z5XegoRnSW_PywGr/view?usp=drivesdk">https://drive.google.com/file/d/1GB0wYbv2OoNNcYV9Z5XegoRnSW_PywGr/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-10753 25.06.2025 25.06.2025 Documentos solicitados