Uzel Ruhan Aşkın
Department of Food Processing, Yasar University, Turkey
Food Sci Technol Int. 2016 Jul;22(5):365-76. doi: 10.1177/1082013215603530. Epub 2015 Sep 2.
Although slow food movement is a well-known movement nowadays, in order to make it more widespread to the society, necessity to develop and to adapt new techniques has become inevitable for healthier consumption age. For this purpose, possibility of increased usage of healthy foods with addition of natural extracts using new techniques came out from relevant questionaries applied to people of different age groups. In this study, specific properties of supercritical carbon dioxide at distinct temperatures and water in subcritical conditions were used to obtain extracts rich in water-soluble organic compounds. Experiments were carried out at pressures of 10, 20, 30, and 40 MPa and temperatures ranging from 40 to 200 ℃ with and without modifier for 2 h of extraction time. The flow rate was kept at 4 and 1 ml/min for CO2 and water, respectively. The highest water-soluble organic compound recovery yield was 78.10%. Results were supported by marketing strategies to announce this new application and products to the society. Group of sample questions was prepared to investigate (a) frequency of staple food usage, (b) the brand names and relevant reasons that bring up consumers to buy specifically same branded products, (c) knowledge about the ingredients and how advertising effects purchasing decision, etc. Finally, efficiency increase in slow food consumption was proved with supercritical fluid technology to draw attention to the health of consumers with newer and functional healthy foods.
尽管慢食运动如今已是一项广为人知的运动,但为了使其在社会中更广泛地传播,对于更健康的消费时代而言,开发和采用新技术已成为必然。为此,通过对不同年龄组人群进行的相关问卷调查,发现了利用新技术添加天然提取物来增加健康食品使用量的可能性。在本研究中,利用超临界二氧化碳在不同温度下以及亚临界条件下的水的特定性质,来获取富含水溶性有机化合物的提取物。实验在10、20、30和40兆帕的压力以及40至200℃的温度范围内进行,有或没有使用改性剂,提取时间为2小时。二氧化碳和水的流速分别保持在4和1毫升/分钟。水溶性有机化合物的最高回收率为78.10%。通过营销策略将这一新应用和产品向社会宣传,结果得到了支持。准备了一组样本问题来调查:(a)主食的使用频率;(b)促使消费者购买特定品牌产品的品牌名称及相关原因;(c)对成分的了解以及广告如何影响购买决策等。最后,超临界流体技术证明了慢食消费效率的提高,以用更新颖、功能性更强的健康食品引起消费者对健康的关注。