Advanced Materials Research Vol. 650

Abstract: Information quality (IQ) is one of the basic factors limiting the development of enterprises. And now it becomes a determinable factor. It’s urgent to improve IQ, especially methods of IQ evaluation. After comparing the views of the scholars at home and abroad, a method of IQ evaluation was developed. The evaluation of information quality includes two parts, data quality and information quality evaluation.Subjective and objective evaluation of data quality were listed, including three basic forms,simple ratio, min or max operation and weighed average. It also introduces developing data quality measurement in engineering practice.The method of IQ evaluation was studied ,and the basis of IQ evaluation was established. It reflected the status of organizational IQ using the data collected by the investigation questionnaires. These analyses are applied to analyze the gap between an organization and the best practice. The results of these techniques can be applied to assurance of IQ improvement and improvement of data quality. It’s also an effective way to lower information costs.

Abstract: Adding hawk teas (Litsea coreana L.) of 2% and 4% (W/V) to reconstituted milk, and inoculated with Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus to prepare hawk tea yogurts, named LCY₁ and LCY₂. Compared with the control yogurt (CY), the viscosity of LCY₁ and LCY₂ respectively increased by 0.39 and 0.57, the syneresis values increased by 1.3% and 1.0%, while its water holding capacity decreased by 3.96% and 7.77% and the titratable acidity had no more changed. The sensory test revealed that the overall acceptability scores of hawk teas yogurt were quite similar to those of the control yogurt. In LCY₁ and LCY₂, the total content of essential amino acid was remarkably higher than that of CY. There were 10-undecenal, (-)-Spathulenol, Cadina-3,9-diene and a-Cubebene detected in hawk tea yogurts, except for 20 volatile components in the CY. The numbers of S. thermophilus in LCY₁ and LCY₂ respectively increased by 0.5 and 0.52 log cfu/ml.