COLOR CHANGES IN DIFFERENT PROCESSING CONDITIONS OF GREEN OLIVES OF CHALKIDIKI VARIETY

被引:3
作者
KARAOULANIS, GD
BAMNIDOU, A
机构
[1] University of Thessaloniki, Dept. of Food Science, Box 279
关键词
CHALKIDIKI (VARIETY); COLOR; COMMON PROCESSING (EFFECT OF); GREEN TABLE OLIVE; PRESERVATION (EFFECT OF);
D O I
10.3989/gya.1995.v46.i3.918
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Green table olives of Chalkidiki variety, which are subject to enzymatic browning during processing and preservation by the commercial method, were collected in different pickings and in two cultivating years. Then, they were treated with 1.5%, 1.7%, 2% and 2.3% NaOH. During the removal of bitterness, washing, fermentation and preservation the green olives were kept, as much as possible, away from any contact with air. The pH was kept at relatively low values (similar to 4.0), mainly during the preservation of green olives. Besides, the concentration of brine was kept constant during the stage of fermentation and preservation (8-10%). The aforementioned precaution resulted in the protection of the colour of the flesh and of the skin from enzymatic browning to a very satisfactory degree. As for the texture of the fruits, the firmness was well preserved.
引用
收藏
页码:153 / 159
页数:7
相关论文
共 15 条
  • [1] Aylward F., Haisnan D.R., Oxidation systems in fruits and vegetables-their relation to the quality of preserved products, Adv. Food Res., 17, pp. 1-76, (1969)
  • [2] Ben-Shalon N., Kahn V., Harel E., Mayer M.A., Olive Catechol Oxidase-Changes during development, J. Sci. Food Agrie., 28, (1977)
  • [3] Ben-Shalon N., Harel E., Mayer M.A., Enzymatic Browning in green olives and its Preservation, J. Sci. Food Agrie., 29, pp. 398-402, (1978)
  • [4] Ben-Shalon N., Kahn V., Harel E., Mayer A.M., Chatechol Oxidase from green olive: Properties and partial purification, Phytochemistry, 16, pp. 1153-1158, (1977)
  • [5] Donaire J.P., Sanchez A.J., Lupez-Goge J., Recalde L., Metabolic changes in fruit and leaf during ripening in the olive, Phytochemistry, 14, pp. 1167-1169, (1975)
  • [6] Fang T.T., Footrankul P., Luh B.S., Effects of blanching chemical treatment and freezing methods on quality of freeze dried mushrooms, J. Food Sci., 36, pp. 1044-1048, (1971)
  • [7] Hayakawa K., Timlers H., Katagiri M., Saito Y., Enzymatic formation of oxolate from oxaloacetate, J. Am. Chem. Sci., 78, pp. 5126-5127, (1956)
  • [8] Kahn V.J., Some biochemical properties of polyphenoloxidase from two varieties differing in their browning rates, J. Food Sci., 42, (1977)
  • [9] Maestro R., Garcia J.M., Castellano U.M., Changes in polyphenol content of olives stored in modified atmospheres, Hort-science, 28, (1993)
  • [10] Mathews A.G., Parpia H.A.B., Food browning as a polyphenol reaction, Adv. Food Res., 19, pp. 75-132, (1971)