Abstract ▼

This study aims to develop the method for identification of mineral foreign matter in food and propose an improvement scheme of foreign matter analysis method by different food types.
1. Using X-ray fluorescence which is known as a non-destructive testing equipment , chemical composition(^11<

This study aims to develop the method for identification of mineral foreign matter in food and propose an improvement scheme of foreign matter analysis method by different food types.
1. Using X-ray fluorescence which is known as a non-destructive testing equipment , chemical composition(¹¹Na ~ ⁹²U, Mass %) of mineral foreign matters(metals, porcelain, dental materials and animals) that is likely to be adulterated during food manufacturing, distribution and consumption were analyzed. there were differences in chemical composition among various metals, glasses were divided into soda-lime glass, borosilicate among main chemical such as Si, Ca, and Al. While bones of livestock and poultry and shell of shrimp were composed of Ca and P, seashells and otoliths were mainly composed of Ca(98% up) and Sr. This method is expected to be a rapid and scientific test for identify cause of foreign matter in food.
2. Fourier transform – infrared (FT-IR) spectroscopy is ideal for use in the nn-destructive identification of the various types of matters swiftly and easily. It is effective for the analysis of foreign matter. We investigated the applicability of FT-IR for the chemical identification of a wide variety of organic foreign matters that can be present in food. We validated the pretreatment method suited for polymer, cloths, thread, and rubber. In addition, we analyzed their standards which may be found in food. Our validated analytical method has been applied for identifying foreign matters found in food. Now, we made a variety of spectra in a searchable spectral database including natural and artificial materials in order to identify foreign matters in food later. Its number is more than 500 including STDs.
3. This study of a method for the determination of metallic foreign powder or particles in milling foods has led to the following recommendation for improvement of the method: 1. Use 300℃ to ash food particles bonded to magnetic as Food Code. 2. Use of 5% sodium dodecyl sulfate solution as substitute for chloroform in a method for chocolates. 3. Weight all samples over 300g to determine metallic particles. The improvements of the metallic foreign method presented in this study could make effectively integrated method into one.
4. Carbon tetrachloride is used to detect sand in flour and for sedimentation method, but this chemical is restricted production and use by the Montreal Protocol and Toxic chemicals control act. Thus, an improvement scheme of use of alternative chemical is required. In this study recovery rate, reproducibility and accuracy tests using Sodium tungstate instead of carbon tetrachloride were performed. Used material was made by mixing Sodium tungstate with distilled water and sodium hydroxide which has a density of 1.6 g/ml 재소 pH 9. When compared the results with carbon tetrachloride, it presented the similarities between two materials.

목차 Contents

• 표지 ... 1
• 자체연구개발과제 최종보고서 ... 2
• 국문 요약문 ... 3
• Summary ... 5
• 목차 ... 7
• 연구개발과제 연구결과 ... 8
• 제1장 연구개발과제의 개요 ... 8
• 제1절 연구개발과제의 목표 ... 8
• 제2절 연구개발과제의 필요성 ... 9
• 제2장 연구개발과제의 국내·외 연구개발 현황 ... 12
• 제1절 국내 연구개발 현황 ... 12
• 제2절 국외 연구개발 현황 ... 16
• 제3장 연구개발과제의 연구수행 내용 및 결과 ... 23
• 제1절 식품 중 무기성분 함유 이물의 분석법 연구 ... 24
• 제2절 식품 중 유기성분 함유 이물의 분석법 연구 ... 51
• 제3절 식품 유혀별 금속성이물의 시험법 개선(안) 마련 연구 ... 74
• 제4절 사분시험법 및 침강법 개선(안) 마련 연구 ... 102
• 제4장 연구개발과제의 연구결과 고찰 및 결론 ... 105
• 제1절 식품 중 무기성분 함유 이물의 분석법 연구 ... 105
• 제2절 식품 중 유기성분 함유 이물의 분석법 연구 ... 146
• 제3절 식품 유형별 금속성이물의 시험법 개선(안) 마련 연구 ... 179
• 제4절 사분시험법 및 침강법 개선(안) 마련 연구 ... 185
• 제5장 연구개발과제의 목표달성도 및 관련분야에의 기여도 ... 188
• 제6장 연구개발과제의 연구개발 결과 활용계획 ... 189
• 제1절 활용성과 ... 189
• 제2절 활용계획 ... 189
• 제7장 참고문헌 ... 191
• 제8장 첨부서류 ... 194
• 끝페이지 ... 631