Pine inner bark, also known as Songpee(松皮) is the inner bark of red pine tree. It has been widely used as a folk remedy and emergency food. It is known to be effective in relieving fatigue and hunger by adding extra energy to the body and to feature antibiotic and antioxidative effect as a natural pigment. This study has identified the optimal condition of pine inner bark powder through the process of collecting, soaking, boiling, drying and grinding in a bid to promote its usefulness as a functional food ingredient and conducted comparative analysis on the quality characteristics by making five different classes of the Songgi Garaetteok with different amount of pine inner bark by 0, 1, 2, 3, and 4%, respectively. The experiment results show that the color values of boiled pine inner bark has peaked in 24 hours with L, a and b recording 24.47, 10.46, and 7.14, respectively. The moist content of pine inner bark powder is 7.83% with color values L, a, and b having 44.11, 14.94, and 20.18, respectively. When it comes to color values of the Songgi Garaetteok that contains pine inner bark powder, the L value turned out to be highest in control group with 72.91 while a value was highest in 4% add group with 15.29 but no statistically significant difference from other add groups. The b value was lowest in control group with 9.18 while b value was within the range between 13.24 and 14.22 among add groups but no statistically significant difference. With regards to moist content, nonglutinous rice powder contains 33.48% while pine inner bark powder holds 7.83%, and as a result of measurements for three days, the moist content for control group and 1% add group turned out to be 48.89 and 51.65, respectively in two hours upon production. On Day 1, the moist content of all samples has peaked with 1% add group recorded 52.52 and control and 4% add group being 49.60 and 49.69, respectively. The moist content has gradually decreased over time after that. When it comes to retrogradation, harness has peaked in control group with 954.13, followed by 4% add group with 944.02 and 1% add group showing the lowest with 723.32. 2% and 3% add groups showed statistically significant different from the rest of the samples with 782.19 and 814.01, respectively. These trends have continued even after 72 hours of storage with significant difference among all samples. The DPPH radical scavenging ability of pine inner bark powder and the Songgi Garaetteok containing 2% pine inner bark has been measured highest at 11.61% and 9.01%, respectively. In evaluating antibiosis, the Songgi Garaetteok containing 4% pine inner bark has shown the highest level of antibacterial activity. In sensory evaluation, the Songgi Garaetteok containing 2% pine inner bark has received the highest score in terms of color, flavor, texture, taste and overall preference. The experiment has shown that the Songgi Garaetteok that contains pine inner bark powder has better antioxidative effect than regular Songgi Garaetteok, let alone favorable preference as well. Therefore, the Songgi Garaetteok with 2% pine inner bark powder turns out to be the most desirable form of the Songgi Garaetteok containing pine inner bark.
I. 서 론 3Ⅱ. 문헌고찰 61. 송기의 활용 61) 송기 활용 역사 62) 송기의 채취 및 효능 72. 고조리서 속 송기떡 103. 송기 기능성 관련 선행연구 154. 부재료를 첨가한 친 떡의 조리과학적 선행연구 18Ⅲ. 실험 재료 및 방법 201. 실험재료 202. 송기의 가공 조건과 단계 201) 생송기, 우린 송기, 삶은 송기의 색도 측정 222) 생송기, 우린 송기, 삶은 송기의 전단력 측정 233) 송기의 가공단계별 표면관찰 233. 송기분말 제조 241) 건조 송기의 분말화 242) 송기 분말의 색도 측정 243) 송기 분말의 수분함량 측정 244. 송기가래떡의 제조 255. 송기가래떡의 품질특성 251) 색도 측정 252) 수분함량 측정 253) 텍스쳐 측정 284) 항산화활성 측정 295) 총균수의 변화 측정 296) 관능적 특성 평가 306. 통계처리 31Ⅳ. 실험결과 및 고찰 321. 생송기, 우린 송기, 삶은 송기의 색도 322. 생송기, 우린 송기, 삶은 송기의 전단력 363. 송기의 가공단계별 표면관찰 384. 송기분말의 이화학적 특성 401) 송기 분말의 색도 402) 송기 분말의 수분함량 435. 송기분말 첨가 가래떡의 품질특성 431) 색도 432) 수분함량 473) 텍스쳐 특성 514) 항산화활성 565) 총균수의 변화 586) 관능적 특성 평가 617) 이화학적 특성 및 관능적 특성의 상관관계 분석 68Ⅴ. 요약 및 결론 71Ⅵ. 참고문헌 74Appendix Ⅰ 85Appendix Ⅱ 86