• 생약학회지
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• 제41권1호
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• pp.9-13
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• 2010

HooBakIp is one of the Korean crude drugs used mainly to cure a headache, apoplexy and dyspepsia. With regard to the botanical origin of HooBakIp, it has been considered to the Machilus thunbergii of Lauraceae in Korea. But there has no pharmacognostical conformation on it. To clarify the botanical origin of HooBakIp, the anatomical characteristics of the leaf of Machilus thunbergii, Machilus thunbergii var. obovata and Machilus japonica were studied. As a result, it was clarified that HooBakIp from Korea was the leaf of Machilus thunbergii.

• 한국의류학회지
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• 제34권5호
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• pp.866-872
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• 2010

This study investigates the methods of the natural dyeing of silk fabrics with Machilus thunbergii cortex extract. After the dyeing of silk with a Machilus thunbergii cortex extract, the dyeability of the Machilus thunbergii cortex extract was evaluated with the dyeing time, concentration, temperature, the numbers of repeated dyeing, the pH of the dyebath, the changes of the K/S value, and surface colors by the methods of mordanting and color fastness. The effective dyeing conditions with silk fabrics were at a concentration of 120g/L, the dyeing temperature at $80^{\circ}C$, and the dyeing time for one hour ten minutes. The effective number of repeated dyeing was three times. The dyeing operation was carried out in a neutral dyebath of pH 7. The K/S value was higher in most of the pre-mordants (except the Sn mordant) and a high K/S value was shown in the copper pre-mordant. The colors of the silk fabrics with Machilus thunbergii cortex were of various brown shades. The color difference was distinct when using the Fe-mordant and the colorfastness of all the dyed samples was low; however, the dry cleaning fastness was excellent at the 4-5 grade.

• 약학회지
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• 제35권2호
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• pp.142-145
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• 1991

Two flavonoids have been isolated from the leaves of Machilus thunbergii Sieb. et Zucc. (Lauraceae) and identified as hyperin and isoquercitrin.

• 생약학회지
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• 제21권1호
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• pp.60-63
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• 1990

From the leaves of Machilus thunbergii Sieb. et Zucc. (Lauraceae) afzelin, guaiyaverin and rutin were isolated and identified by chemical and spectral analysis.

• 생약학회지
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• 제25권2호
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• pp.188-193
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• 1994

'Hoo Bak' is one of the Chinese crude drugs used mainly to cure a headache, apoplexy and dyspepsia. With regard to the botanical origin of 'Hoo Bak', it has been considered to be Machilus thunbergii of Lauraceae in Korea. But there has no pharmacognostical confirmation on it. To clarify the botanical origin of 'Hoo Bak', the anatomical characteristics of the bark of Machilus thunbergii, Magnolia officinalis and Magnolia obovata were studied. As a result, it was clarified that 'Hoo Bak' from Korea was the bark of Machilus thunbergii of Lauraceae.

• 생약학회지
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• 제21권3호
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• pp.197-200
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• 1990

Quercetin, trifolin and quercitrin were isolated from the leaves of Machilus thunbergii Sieb. et Zucc. (Lauraceae) and characterized by spectral data. These are reported for the first time from this plant.

• The Korean Journal of Ecology
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• 제14권1호
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• pp.39-48
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• 1991

A phytosociological study was carried out at the Castanopsis-Machilus type forests in Cheju Island. As the result, it has become clear that the alliance Castanopsion sieboldii and Cleyero-Quercion salicinae classified into the order Ardisio-Castanopsietallia sieboldii and the class Camellietae japonicae are distributed in Cheju Island. The Castanopsion sieboldii include Quercus glauca communiy, Arisaemato ringentis-Persetum thunbergii, Castanopsis sieboldii-Machilus thunbergii community and Castanopsis sieboldii-Quercus glauca community. The Cleyero-Quercion salicinae contains Distylio-Quercetum salicinae.

• Journal of Plant Biology
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• 제36권3호
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• pp.297-300
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• 1993

Six flavonoid compounds from the ethyl acetate fraction of Machilus thunbergii leaves were identified by HPLC. Separation by reversed phase chromatography on u-Bondapak C18 column was achieved by isocratic elution. The contents of the major flavonoids, guaijaverin and quercitrin were about 0.48% (w/w) and 0.98% (w/w) for the methanol extract, respectively.

• 대한본초학회지
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• 제23권4호
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• pp.21-29
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• 2008

Objectives: To determine the standards for discrimination of Magnoliae Cortex, the experiment of specific external-internal characters and the physicochemical pattern analysis were performed. Methods: External characteristics was observed using a stereoscope. Paraffin-mediated sectioned materials were stained by Ju's method. Physicochemical patterns of materials were analyzed using HPLC. Results: 1. Botanical characteristics: Magnolia officinalis had one seed and a white flower, while M. obovata had two seeds and a white flower. Machilus thunbergii had berry and spherical fruits and yellowish green panicles. 2. External characteristics: M. officinalis and M obovata were dark and thick. M. officinalis was gray brown and greasy while M. obovata was light-gray, less oily and smoothly sectioned. Machilus thunbergii was thin and relatively light or yellow-brown, coarsely sectioned and faintly specific scents. 3. Internal characteristics: The bast parts of M. officinalis and M. obovata were commonly wider than Machilus thunbergii The cork cortex of M. officinalis was $10{\sim}mg/L$ cell layers with many oil cells, while that of M. obovata was $4{\sim}7$ cell layers with less oil cells. Machilus thunbergii's xylem which consisted of ring-shaped cambium at 1st and 2nd part was occupied in large portion. 4. Physicochemical pattern: Both M. officinalis and M. obovata involved honokiol and magnolol. All kinds of M. officinalis involved Magnatriol B but one kind of M. ovobata and all of Machilus thunbergii didn't. Machilus thunbergii showed different pattern of chromatogram from that of 2 species above. Conclusions: These results could be used as standards for discrimination of Magnoliae Cortex and as the method of objectification in medicinal herbs giving the basic resource for bioactivity research.

• The Korean Journal of Ecology
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• 제23권5호
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• pp.391-395
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• 2000

본 조사는 1997년 4월부터 1998년 12월까지 경상남도 통영시 한산면의 한산도와 추봉도를 중심으로 이루어졌으며 식생분석을 위해 군락조성표를 작성하였다. 본 조사지역의 식생은 곰솔군락(전형하위군락, 굴참나무하위군락, 소사나무하위군락), 소나무군락, 후박나무군락, 편백식재림, 삼나무식재림, 억새군락 등 총 6개 군락과 3개 하위군락으로 구분되었다. 본 조사지역인 한산도 제승당 주변의 소나무군락은 식생이 가장 잘 보존되어 있는 지역이지만 도서 전체에 대한 광범위한 생태학적 측면에서의 복원이 필요하며 고란초와 같은 희귀식물, 후박나무와 곰솔 등의 노거수, 후박나무, 동백나무 분포지 등은 보호되어야 한다.