頁籤選單縮合
題名 | 茶油之穩定性探討及生育酚與固醇類成份之分析 |
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作者 | 王振瀾; 尹華文; 劉文玉; | 書刊名 | 林業試驗所研究報告季刊 |
卷期 | 9:1 1994.03[民83.03] |
頁次 | 頁73-85 |
分類號 | 466.11 |
關鍵詞 | 大果種普通油茶; 小果種細葉油茶; 標準活化氧測定法; 碘價; 酸價; 皂化價; 生育酚; 固醇類; Comellia Oleifera Abel.; Comellia Tenuifolia; Hay.; Cohen Stuart; Active Oxygen Method; Iodine Value; Acid Value; Saponification Value; Tocopherols; Sterols; |
語文 | 中文(Chinese) |
中文摘要 | 採集林試所蓮華池分所栽培之大果種普通油茶(Camellia oleifera Abel.)及小果種細葉油茶(Camellia tenuifolia (Hay.) Cohen Stuart) 果實,待風乾後,收集種子,經壓成片狀後以溶劑正己烷萃取,獲得油脂成份。應用標準活化氧測定法(AOM)探討茶油之穩定性,並以橄欖油為對照。結果顯示大果種茶油穩定性最好,較橄欖油為優。此外,分析和比較新鮮茶油及經過半年和一年室溫儲存後茶油之主要性質,得知大果種和小果種茶油之碘價均呈下降趨勢,而酸價及皂化價均顯著上昇。茶油經皂化處理,收集不皂化部份,再應用氣相層析儀分析生育酚(天然抗氧化劑)及固醇類成份,獲知大果種茶油中生育酚含量較小果種茶油為高,分別為 0.045%及0.027%。 |
英文摘要 | The seeds of two oiltea species, Camellia oleifera Abel. and Camellia tenuifolia (Hay.) Cohen Stuart, were collected from Lien-hwa chi, Nantou. The oil was obtained from the pressed dry seed flakes by extraction with n-hexane. The stability of oil was investigated by the Active Oxygen Method (AOM). The olive oil from market was also examined for comparison. Significant changes of iodine value, acid value and sapoification value of oiltea oils were observed after six-month and one-year storages at room temperature. Besides, the unsaponifiable matter of oil was detected for its content of tocopherols (natural anti- oxidants) and sterols by Gas Chromatographic analysis. |
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