Lutein and lutein esters in marigold flowers was quantitatively determined by high performance chromatography （HPLC） with ODS-C 18 column.A mixture of CH3CNCD*2CH3OHCD*2CH3COOCH2CH3 with volume ratio of 55∶1∶44 wa...Lutein and lutein esters in marigold flowers was quantitatively determined by high performance chromatography （HPLC） with ODS-C 18 column.A mixture of CH3CNCD*2CH3OHCD*2CH3COOCH2CH3 with volume ratio of 55∶1∶44 was used as mobile phase at a flow rate of 1.0 mL/min and detection was carried out at 460nm. The column temperature was about 20℃. The contents of lutein and lutein esters were determined by analytical curve of lutein since lutein and lutein esters have the same spectral characteristics. Determination results of hexane extracts and saponified samples of lutein show that the saponification transforms the esters into free lutein. The increase of the content of dipalmitate and palmitate stearate reveals that the reaction includes transesterifications.展开更多
Carotenoids are organic compounds and widely distributed pigments that provide shades of yellow,orange or red to agricultural,horticultural and aqua commodities.They not only are natural colourants but also play a vit...Carotenoids are organic compounds and widely distributed pigments that provide shades of yellow,orange or red to agricultural,horticultural and aqua commodities.They not only are natural colourants but also play a vital role in both plant and human health,besides holding potential(especiallyβ-carotene)to address much prevalent vitamin A deficiency around the globe.The bio-wastes generated from fruits and vegetable processing industries like carrot pomace,tomato peels,etc.;fish processing industry and;non-edible sources like marigold flower are rich sources of carotenoids.These sources could be potentially used for extraction of carotenoids for an array of applications.Conventionally,organic solvents have been used for their extraction,most of which are hazardous.Lately,scientists have commenced their researches on alternative green solvents for extraction purposes as these besides retaining natural colour,also provide numerous health benefits.Vegetable oils are one such example of green solvents which are edible,safe,natural,non-toxic,and environment friendly,and help in harnessing bio-functional properties from bio-wastes and other non-edible sources.Present review recapitulates distribution of carotenoids in these sources;existing conventional strategies and recent developments in innovative extractions;followed by potential applications of extracted carotenoids in food,pharma and cosmetic industries.展开更多
文摘Lutein and lutein esters in marigold flowers was quantitatively determined by high performance chromatography （HPLC） with ODS-C 18 column.A mixture of CH3CNCD*2CH3OHCD*2CH3COOCH2CH3 with volume ratio of 55∶1∶44 was used as mobile phase at a flow rate of 1.0 mL/min and detection was carried out at 460nm. The column temperature was about 20℃. The contents of lutein and lutein esters were determined by analytical curve of lutein since lutein and lutein esters have the same spectral characteristics. Determination results of hexane extracts and saponified samples of lutein show that the saponification transforms the esters into free lutein. The increase of the content of dipalmitate and palmitate stearate reveals that the reaction includes transesterifications.
基金the institute funded project number IXX12952 titled,‘Preparation and Characterization of Micro/nano delivery systems for“green”carotenoids’.
文摘Carotenoids are organic compounds and widely distributed pigments that provide shades of yellow,orange or red to agricultural,horticultural and aqua commodities.They not only are natural colourants but also play a vital role in both plant and human health,besides holding potential(especiallyβ-carotene)to address much prevalent vitamin A deficiency around the globe.The bio-wastes generated from fruits and vegetable processing industries like carrot pomace,tomato peels,etc.;fish processing industry and;non-edible sources like marigold flower are rich sources of carotenoids.These sources could be potentially used for extraction of carotenoids for an array of applications.Conventionally,organic solvents have been used for their extraction,most of which are hazardous.Lately,scientists have commenced their researches on alternative green solvents for extraction purposes as these besides retaining natural colour,also provide numerous health benefits.Vegetable oils are one such example of green solvents which are edible,safe,natural,non-toxic,and environment friendly,and help in harnessing bio-functional properties from bio-wastes and other non-edible sources.Present review recapitulates distribution of carotenoids in these sources;existing conventional strategies and recent developments in innovative extractions;followed by potential applications of extracted carotenoids in food,pharma and cosmetic industries.
