MARC details
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02542nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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20250625162419.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-18808 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Determination of chlorophylls in Taraxacum formosanum by high-performance liquid chromatography-diode array detection-mass spectrometry and preparation by column chromatography |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of agricultural and Food Chemistry, 60(24), p.6108-6115, 2012 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Taraxacum formosanum, a well-known Chinese herb shown to be protective against hepatic cancer as well as liver and lung damage, may be attributed to the presence of abundant carotenoids and chlorophylls. However, the variety and content of chlorophylls remain uncertain. The objectives of this study were to develop an high-performance liquid chromatography? diode array detection?mass spectrometry method for determination of chlorophylls in T. formosanum and preparation by column chromatography. An HyPURITY C18 column and a gradient mobile phase of water (A), methanol (B), acetonitrile (C), and acetone (D)could resolve 10 chlorophylls and an internal standard Fast Green FCF within 30 min with a flow rate at 1 mL/ min and detection at 660 nm. Both chlorophylls a and a? were present in the largest amount (1389.6 ?g/g), followed by chlorophylls b and b? (561.2 ?g/g), pheophytins a and a? (31.7 ?g/g), hydroxychlorophyll b (26.5 ?g/g), hydroxychlorophylls a and a? (9.8 ?g/g), and chlorophyllides a and a? (0.35 ?g/g). A glass column containing 52 g of magnesium oxide?diatomaceous earth (1:3, w/w)could elute chlorophylls with 800 mL of acetone containing 50 percent ethanol at a flow rate of 10 mL/min. Some new chlorophyll derivatives including chlorophyllide b, pyropheophorbide b, hydroxypheophytin a, and hydroxypheophytin a? were generated during column chromatography but accompanied by a 63 percent loss in total chlorophylls. Thus, the possibility of chlorophyll fraction prepared from T. formosanum as a raw material for future production of functional food needs further investigation. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
TARAXACUM FORMOSANUM |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CHLOROPHYLLS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
HPLC-DAD-MS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
COLUMN CHROMATOGRAPH |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Loh, C. H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Inbaraj, B. S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Liu, M. H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Chen, B. H. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1jlxpT5xanF7Y9JOdFlF_A5-vCcDGojcK/view?usp=drivesdk">https://drive.google.com/file/d/1jlxpT5xanF7Y9JOdFlF_A5-vCcDGojcK/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
