Estimation of percentage of oleic acid in M. longissimus thoracis by measuring impedance on surface of the muscle on cross section of carcass from Japanese Black steers
アイテムタイプ
学術雑誌論文 / Journal Article
言語
日本語
キーワード
枝肉切開面, 黒毛和種去勢牛, インピーダンス, オレイン酸, 接触型電極
キーワード(英)
cross section of carcass, Japanese Black steers, impedance, oleic acid, touch type electrode
In this study, the percentage of oleic acid in M. longissimus thoracis was estimated by measuring impedance on the surface of muscle from cross sections of Japanese Black steer carcasses using touch type electrodes. An LCR meter, equipped with touch type electrode pairs, measured impedance on the surface of the muscle located between the 6th and 7th ribs of Japanese Black steer carcasses (n＝21). Measurements were made at 1 Hz, 120 Hz, 1 kHz, and 100 kHz and the distance between the electrode pair on the current generation side and electrode pair on the detection side was either 1 or 3 cm. Oleic acid percentage of the muscles was analyzed by gas chromatography. A significant correlation was found between oleic acid percentage and impedance, measured at 1 kHz, when the distance between the electrode pairs was 1 cm. Significant correlations were also detected between oleic acid percentage and impedance, measured at 120 Hz, 1 kHz, and 100 kHz, when the distance between the electrode pair was 3 cm. Our results suggest that it is possible to estimate oleic acid percentage by measuring impedance in M. longissimus thoracis using a cross section of carcass and a wide range of frequencies using electrode pairs at a 3cm distance.
接触型電極を用いたインピーダンス測定による枝肉肋骨間の切開面におけるオレイン酸割合の推定
jjzs-v92n3p331-334
(506.34KB)
