Enzymatic hydrolysis of complex substrates following thermal pretreatment operations

Vardar‐Sukan, Fazilet; Sukan, Ş. Suha; Öngen-Baysal, Gaye

doi:10.1007/bf00138559

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Currently we do not have an explanation for these results, but it seemed logical to expect that the cell walls had different structures in fresh and dehydrated marigold. Cell wall modifications during processing have been demonstrated with other materials (Massiot et al, 1992;Vardar-Sukan et al, 1993). Marigold fresh flowers were treated with enzymes before the drying processes.…”

Section: Resultsmentioning

confidence: 98%

Effects of Enzymatic Treatments of Marigold Flowers on Lutein Isomeric Profiles

Delgado‐Vargas

Paredes‐López

1997

J. Agric. Food Chem.

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Reversed-phase C30 HPLC was applied to study the identity of lutein isomers and to monitor the effects of solids content and elimination of water-soluble substances on the isomeric carotenoid profiles of marigold (Tagetes erecta) samples treated with enzymes. The tentative identity of four lutein isomers present in saponified marigold extracts was confirmed. Enzymatic treatment on a 5% solids slurry produced the marigold meal with the highest all-trans-lutein content [25.1 g/kg dry weight (dw)]. We did not observe variations in the distribution in percentage of lutein isomers due to enzymatic treatment; the elimination of water solubles had a significant but small effect on such variations. The solids content was the principal factor that affected the carotenoid profiles. An analysis of the distribution showed that 15% solids gave the highest all-trans-lutein percentage in treated meals. Interestingly, with 20% solids both the degradation of lutein and the percentage of all-trans-zeaxanthin were the highest. Keywords: Lutein; carotenoids; pigments; marigold; Tagetes

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Section: Resultsmentioning

confidence: 98%

Effects of Enzymatic Treatments of Marigold Flowers on Lutein Isomeric Profiles

Delgado‐Vargas

Paredes‐López

1997

J. Agric. Food Chem.

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Biotechnological Developments in Turkey

Özcengiz

1996

Critical Reviews in Biotechnology

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Turkey is a country not usually associated with industrial biotechnology. However, when current research potential in universities and other R & D centers and particularly contributions made to the international literature since the mid-1980s are taken into account, high-quality international-level work is now commonplace, especially in areas such as industrial microbiology, enzyme technology, biomaterials and biological wastewater treatment. Work in plant biotechnology is at a relatively early stage, but is expected to become a rapidly developing force in the near future. The present article documents current potential in Turkey, based on significant publications produced during the last 8 years.

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Enzymatic hydrolysis of complex substrates following thermal pretreatment operations

Cited by 2 publications

References 3 publications

Effects of Enzymatic Treatments of Marigold Flowers on Lutein Isomeric Profiles

Effects of Enzymatic Treatments of Marigold Flowers on Lutein Isomeric Profiles

Biotechnological Developments in Turkey

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