PEBAX[poly(ether-block-amide)]에 NaY zeolite를 첨가하여 PEBAX-NaY zeolite 복합막을 제조하고 제조한 복합 막에 대한 C3H6와 C3H8의 투과도와 선택도(C3H6/C3H8)에 대하여 조사하였다. SEM관찰에 의하면 PEBAX-NaY zeolite 복합 막 내에 NaY zeolite는 0.5∼2.5 μm의 덩어리 상태로 분산되어 있었다. TGA측정에 의하면 PEBAX에 NaY zeolite가 첨가되 면 첨가된 NaY zeolite 양만큼의 질량 변화를 알 수 있었다. 기체투과 실험에 의하면 PEBAX-NaY zeolite 복합막 내의 NaY zeolite함량이 증가할수록 C3H6와 C3H8의 투과도는 감소하였고, C3H6의 투과도는 C3H8의 투과도보다는 크게 나타났으며, 기 체선택도(C3H6/C3H8)는 감소하는 경향을 나타내었다.

This study investigated the functional substances, including phenolics, tocopherol compounds in rice (Onnuri, Nampyeong, Dongjin, Deuraechan, Hopum, Iksan-515, Iksan-526) that were cultivated in Iksan region. Specially, Iksan-515 and Iksan-526 were produced resveratrol rice. Resveratrol is health-beneficial compound with strong antioxidant activity. Iksan-515 and Iksan-526 were contained resveratrol compound while, other rice varieties did not showed resveratrol. The total phenolic compounds showed similar concentrations in 7 rice varieties. Especially, Iksan-526 revealed 273.3 ㎍ g-1 and Iksan-515 was 264.8 ㎍ g-1. In this study, we analyzed vitamin E contents of 7 varieties of rice. The total tocopherols revealed 418.3 ㎍ g-1 in Iksan-526, 401.2 ㎍ g-1 in Iksan-515 and 413.3 ㎍ g-1 in Hopum. We determined 4 tocopherols (α-, β-, γ-, δ-) and 4 tocotrienols (α-, β-, γ-, δ-). Among the all samples, β-tocotrienol showed higher average concentrations (101.3 ㎍ g-1) than other compounds and, γ-tocotrienol revealed second higher concentration (94.5 ㎍ g-1). On the other hand, δ-tocopherol was not detected in all rice samples.