The Influence of Different Drying Methods on Constituents and Antioxidant Activity of Saffron from China

More and more saffron has been cultivated in China because of the increasing saffron demand, but no paper has studied the influence of drying methods on the quality of Chinese saffron. In this paper, three different dehydration treatments applied in actual production were evaluated: dehydration with electric oven, vacuum oven, and microwave. We determined that the highest quality of saffron will be obtained when fresh saffron is treated at higher temperatures (no more than 70°C) for a long time by electric oven drying and vacuum oven drying. In microwave drying, treatments at lower microwave power and longer time benefit the quality of saffron. In addition, the influence of the drying method on antioxidants in saffron is discussed. The correlation between individual saffron profiles and the antioxidant value was estimated by spectrum-effect relationships analysis.

[1]  M. Hashemi,et al.  Evaluation of antioxidant activities of bioactive compounds and various extracts obtained from saffron (Crocus sativus L.): a review , 2015, Journal of Food Science and Technology.

[2]  Omid Mahmoud,et al.  EFFECT OF COMPOSITION ON RELEASE OF AROMA COMPOUNDS , 2012 .

[3]  M. Vida,et al.  EFFECT OF DIFFERENT DRYING METHODS ON SAFFRON (CROCUS SATIVUS L) QUALITY , 2012 .

[4]  Hong Yu,et al.  Antioxidant anthocyanins screening through spectrum–effect relationships and DPPH-HPLC-DAD analysis on nine cultivars of introduced rabbiteye blueberry in China , 2012 .

[5]  M. Ozkaymak,et al.  Freeze Drying of Saffron (Crocus sativus L.) , 2011 .

[6]  Grazia Lombardo,et al.  Influence of corm provenance and environmental condition on yield and apocarotenoid profiles in saffron (Crocus sativus L.) , 2010 .

[7]  Manuel Carmona,et al.  Effects of mild temperature conditions during dehydration procedures on saffron quality parameters. , 2010, Journal of the science of food and agriculture.

[8]  Yang Wang,et al.  LC Fingerprint and Hierarchical Cluster Analysis of Crocus sativus L. from Different Locations in China , 2009 .

[9]  Y. Liu,et al.  Antioxidant potential of crocins and ethanol extracts of Gardenia jasminoides ELLIS and Crocus sativus L.: A relationship investigation between antioxidant activity and crocin contents , 2008 .

[10]  Rogelio Pereda-Miranda,et al.  HPLC quantification of major active components from 11 different saffron (Crocus sativus L.) sources , 2007 .

[11]  A. Zalacain,et al.  Generation of saffron volatiles by thermal carotenoid degradation. , 2006, Journal of agricultural and food chemistry.

[12]  Amaya Zalacain,et al.  Analysis of saffron volatile fraction by TD–GC–MS and e-nose , 2006 .

[13]  N. Davies,et al.  Effect of drying temperature and air flow on the production and retention of secondary metabolites in saffron. , 2005, Journal of agricultural and food chemistry.

[14]  A. Zalacain,et al.  Influence of different drying and aging conditions on saffron constituents. , 2005, Journal of agricultural and food chemistry.

[15]  A. Zalacain,et al.  Influence of the type of dehydration process on the sensory properties of saffron spice , 2002 .

[16]  G. Shui,et al.  An investigation of antioxidant capacity of fruits in Singapore markets , 2002 .

[17]  C. Biliaderis,et al.  Kinetic studies of saffron (Crocus sativus L.) quality deterioration , 1997 .

[18]  S. G. Agarwal,et al.  Changes in Pigments and Volatiles of Saffron ( Crocus sativusL) During Processing and Storage , 1996 .