Pub Date : 2015-03-01DOI: 10.6156/JTAR/2015.06401.01
Shu-Pei Chen, Y. Chiu, Chien-Chung Chen, J. Wong
A new invasive dendrobium mealybug, Pseudococcus dendrobiorum Williams (Hemiptera: Pseudococcidae), through imported orchids (Phalaenopsis spp.) from Vietnam was confirmed by Taiwan Agricultural Research Institute (TARI) in 2013. In this study, morphological characteristics and ribosomal DNA internal transcribed spacer 1 (rDNA-ITS1) sequence were used for the species identification and confirmation of the introduction source. A standard process for elimination and subsequent detection survey of this pest to prevent its spreading was executed by the Bureau of Animal and Plant Health Inspection and Quarantine (BAPHIQ) based on the Plant Protection Act. No individual of this pest was found again during the later surveys. The slide-mounted voucher specimens were deposited in the Insect and Mite Museum, Division of Applied Zoology, TARI.
{"title":"Report on a new invasive species, Pseudococcus dendrobiorum Williams (Hemiptera: Pseudococcidae), in Taiwan.","authors":"Shu-Pei Chen, Y. Chiu, Chien-Chung Chen, J. Wong","doi":"10.6156/JTAR/2015.06401.01","DOIUrl":"https://doi.org/10.6156/JTAR/2015.06401.01","url":null,"abstract":"A new invasive dendrobium mealybug, Pseudococcus dendrobiorum Williams (Hemiptera: Pseudococcidae), through imported orchids (Phalaenopsis spp.) from Vietnam was confirmed by Taiwan Agricultural Research Institute (TARI) in 2013. In this study, morphological characteristics and ribosomal DNA internal transcribed spacer 1 (rDNA-ITS1) sequence were used for the species identification and confirmation of the introduction source. A standard process for elimination and subsequent detection survey of this pest to prevent its spreading was executed by the Bureau of Animal and Plant Health Inspection and Quarantine (BAPHIQ) based on the Plant Protection Act. No individual of this pest was found again during the later surveys. The slide-mounted voucher specimens were deposited in the Insect and Mite Museum, Division of Applied Zoology, TARI.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128462255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-09-01DOI: 10.6156/JTAR/2014.06303.02
Chi-Feng Lee
Five species of ＂Sangariola＂ Jacobson are recognized as valid. ＂Sangariola hirashimai＂ Kimoto, 1970, ＂Sangariola fortune＂ (Baly 1888), and ＂Sangariola punctatostriata＂ (Motschulsky 1861) are redescribed. ＂Sangariola costata＂ Chujo, 1935b is removed from synonymy with ＂S. punctatostriata＂ (Motschulsky 1861). A new species, ＂Sangariola yuae＂ sp. nov., is described from Taiwan. ＂Charidea nigrosuturalis＂ var. ＂obliterate＂ Pic, 1937 is proposed as a new synonym of S. ＂fortune＂ (Baly 1888). Lectotypes are designated for ＂Charidea fortune＂ Baly, 1888, ＂Charidea nigrosuturalis＂ Pic, 1937, ＂Galleruca＂ (sic!) ＂punctatostriata＂ Motschulsky, 1861, ＂Galeruca (Adimonia) multicostata＂ Jacoby, 1885, and ＂Sangariola costata＂ Chujo, 1935b.
{"title":"Revision of the Genus ＂Sangariola＂ Jacobson (Coleoptera: Chrysomelidae: Galerucinae: Alticini)","authors":"Chi-Feng Lee","doi":"10.6156/JTAR/2014.06303.02","DOIUrl":"https://doi.org/10.6156/JTAR/2014.06303.02","url":null,"abstract":"Five species of ＂Sangariola＂ Jacobson are recognized as valid. ＂Sangariola hirashimai＂ Kimoto, 1970, ＂Sangariola fortune＂ (Baly 1888), and ＂Sangariola punctatostriata＂ (Motschulsky 1861) are redescribed. ＂Sangariola costata＂ Chujo, 1935b is removed from synonymy with ＂S. punctatostriata＂ (Motschulsky 1861). A new species, ＂Sangariola yuae＂ sp. nov., is described from Taiwan. ＂Charidea nigrosuturalis＂ var. ＂obliterate＂ Pic, 1937 is proposed as a new synonym of S. ＂fortune＂ (Baly 1888). Lectotypes are designated for ＂Charidea fortune＂ Baly, 1888, ＂Charidea nigrosuturalis＂ Pic, 1937, ＂Galleruca＂ (sic!) ＂punctatostriata＂ Motschulsky, 1861, ＂Galeruca (Adimonia) multicostata＂ Jacoby, 1885, and ＂Sangariola costata＂ Chujo, 1935b.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"40 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116405935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.6156/JTAR/2013.06204.01
S. Triapitsyn
One new fairyfly (Hymenoptera: Mymaridae) species, Anagrus (Anagrus) iti sp. n., described from Tahiti Island, French Polynesia, was reared from eggs of the invasive glassy-winged sharpshooter, Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae), which is native to southeastern USA and northeastern Mexico. An overview of the taxonomic and biological studies on the egg parasitoids (Hymenoptera: Aphelinidae, Mymaridae, and Trichogrammatidae) of various proconiine sharpshooters (Cicadellidae: Cicadellinae: Proconiini) in the New World is given. Of particular importance are the natural enemies of H. vitripennis, a notorious vector of the phytopathogenic bacterium, Xylella fastidiosa; with reference to its egg parasitoids and biological control in the non-native range are also provided.
{"title":"A New Species of Anagrus (Hymenoptera: Mymaridae) from Tahiti, with Notes on Egg Parasitoids of Proconiine Sharpshooters (Hemiptera: Cicadellidae: Proconiini) in the World","authors":"S. Triapitsyn","doi":"10.6156/JTAR/2013.06204.01","DOIUrl":"https://doi.org/10.6156/JTAR/2013.06204.01","url":null,"abstract":"One new fairyfly (Hymenoptera: Mymaridae) species, Anagrus (Anagrus) iti sp. n., described from Tahiti Island, French Polynesia, was reared from eggs of the invasive glassy-winged sharpshooter, Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae), which is native to southeastern USA and northeastern Mexico. An overview of the taxonomic and biological studies on the egg parasitoids (Hymenoptera: Aphelinidae, Mymaridae, and Trichogrammatidae) of various proconiine sharpshooters (Cicadellidae: Cicadellinae: Proconiini) in the New World is given. Of particular importance are the natural enemies of H. vitripennis, a notorious vector of the phytopathogenic bacterium, Xylella fastidiosa; with reference to its egg parasitoids and biological control in the non-native range are also provided.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125376213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-03-01DOI: 10.6156/JTAR/2011.06001.07
Chen Shupei, Wong JenYu, Wu WenJen
The papaya mealybug, Paracoccus marginatus Williams and Granara de Willink, is a serious pest of many agricultural plants and ornamentals. It has spread throughout most countries of the Caribbean region, causing huge economic losses to papayas since 1994. This pest alert reports P. marginatus damaging papayas in Taiwan for the first time. Besides it also describes the fundamental biological data of P. marginatus, its existing host plants, and its distribution in Taiwan and around the world.
番木瓜粉蚧(Paracoccus marginatus Williams和Granara de Willink)是许多农业植物和观赏植物的严重害虫。它已经蔓延到加勒比地区的大多数国家，自1994年以来给番木瓜造成了巨大的经济损失。本报告为台湾首次报导边缘小蠹对木瓜的危害。此外，本文还介绍了边际花的基本生物学资料、寄主植物及其在台湾和世界各地的分布。
{"title":"Preliminary report on the occurrence of papaya mealybug, Paracoccus marginatus Williams and Granara de Willink, in Taiwan.","authors":"Chen Shupei, Wong JenYu, Wu WenJen","doi":"10.6156/JTAR/2011.06001.07","DOIUrl":"https://doi.org/10.6156/JTAR/2011.06001.07","url":null,"abstract":"The papaya mealybug, Paracoccus marginatus Williams and Granara de Willink, is a serious pest of many agricultural plants and ornamentals. It has spread throughout most countries of the Caribbean region, causing huge economic losses to papayas since 1994. This pest alert reports P. marginatus damaging papayas in Taiwan for the first time. Besides it also describes the fundamental biological data of P. marginatus, its existing host plants, and its distribution in Taiwan and around the world.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131236399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-01DOI: 10.6156/JTAR/2010.05902.01
Huibin Wu, Lit-Fu Chan, M. Wei, Hsiu-Ying Lu
Leaf area is a valuable index in identifying muskmelon (Cucumis melo L.) growth and development. A simple technique was developed for estimating leaf surface area (A) of muskmelon with measurements of leaf length from the sinus base to the apex of leaf along midrib (L) and/or maximum leaf width (W) without the use of any expensive instruments. Leaves for three muskmelon varieties, Chioumih, Zhufen and Tianhun were collected from different levels of the canopy of plants during the growing season in 2007 at Taiwan Agricultural Research Institute, Wufeng, Taichung, Taiwan. Each leaf was measured for L, W and A. Data analysis were performed by regression technique. Results showed that differences in leaf shape among these varieties affected the performances of prediction accuracy in different models for leaf area estimation. The linear equations having W2 as the independent variable provided the most accurate estimation of A for Chioumih and Zhufen muskmelons, with leaf area coefficients of 0.70 and 0.62, respectively. For Tianhun muskmelon, the equation of A=0.67 × L × W exhibited the highest accuracy of leaf area estimation, and the equations of A=0.62 × L2 and A=0.71 × W2 could also be adopted. With these models, a high degree of 1:1 relationship was obtained between measured and predicted leaf areas, and they produced satisfactory results of lower mean squared deviation (in the range of 451 to 762), lower percentage of deviation for total leaf area (≦1.34%), and lower mean percentage of deviation for individual leaf area (≦0.25%). The linear regression model was simple, rapid, inexpensive and accurate for estimation of leaf surface area of muskmelon and nondestructive to plant growth.
{"title":"A Simple and Inexpensive Technique for Estimating Leaf Surface Area of Muskmelon (Cucumis melo L.)","authors":"Huibin Wu, Lit-Fu Chan, M. Wei, Hsiu-Ying Lu","doi":"10.6156/JTAR/2010.05902.01","DOIUrl":"https://doi.org/10.6156/JTAR/2010.05902.01","url":null,"abstract":"Leaf area is a valuable index in identifying muskmelon (Cucumis melo L.) growth and development. A simple technique was developed for estimating leaf surface area (A) of muskmelon with measurements of leaf length from the sinus base to the apex of leaf along midrib (L) and/or maximum leaf width (W) without the use of any expensive instruments. Leaves for three muskmelon varieties, Chioumih, Zhufen and Tianhun were collected from different levels of the canopy of plants during the growing season in 2007 at Taiwan Agricultural Research Institute, Wufeng, Taichung, Taiwan. Each leaf was measured for L, W and A. Data analysis were performed by regression technique. Results showed that differences in leaf shape among these varieties affected the performances of prediction accuracy in different models for leaf area estimation. The linear equations having W2 as the independent variable provided the most accurate estimation of A for Chioumih and Zhufen muskmelons, with leaf area coefficients of 0.70 and 0.62, respectively. For Tianhun muskmelon, the equation of A=0.67 × L × W exhibited the highest accuracy of leaf area estimation, and the equations of A=0.62 × L2 and A=0.71 × W2 could also be adopted. With these models, a high degree of 1:1 relationship was obtained between measured and predicted leaf areas, and they produced satisfactory results of lower mean squared deviation (in the range of 451 to 762), lower percentage of deviation for total leaf area (≦1.34%), and lower mean percentage of deviation for individual leaf area (≦0.25%). The linear regression model was simple, rapid, inexpensive and accurate for estimation of leaf surface area of muskmelon and nondestructive to plant growth.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114257321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-06-01DOI: 10.6156/JTAR/2009.05802.05
Yuh-Jyuan Lee, Chwen-Ming Yang
Perilla frutescens (L.) Britton, a member of Lamiaceae and a native dicot in Asia, is now distributed worldwide including Taiwan. To further explore its uses as a commercial crop, a comprehensive study regarding the growth behavior and chemical components of this plant species is needed. In the present research, changes in growth traits, including plant height, leaf area index and weights of aerial parts, and leaf perillaldehyde (PA) concentration and content were investigated for plants grown in different growing seasons in the experimental period from 2004 to 2006. The five-leaf stage seedlings were transplanted in March (Season I), April (Season II), May (Season III) June (Season IV) and July (Season V), respectively. Concentration of leaf PA was determined by High Performance Liquid Chromatography (HPLC). Results showed that plant height was taller and leaf area index and fresh weights of aerial parts were larger for plants grown in cooler Season I relative to those plants grown in other warmer seasons (Seasons II-V), implying that warming conditions during growing periods was not in favor to plant growth. Seeds harvested at maturity were found varied in different growing seasons and seed produced in Season V was the lowest. In contrast, the highest value of 500-seed weight also obtained from seeds produced in Seasons V. The PA concentration in the primary leaves on the main stem from position 10 to 15 was higher than others and the quadratic pattern was similar in different growing seasons in 2004–2006. The distribution pattern of leaf PA content was in accordance with leaf PA concentration during the growing periods. In considering the proportions of PA distributed in leaves emerged on the main stem and the lateral branches, the proper time period to harvest the highest quantity of leaf PA for a single plant was from 110 to 120 days after transplanting.
{"title":"Seasonal Changes of Growth and Leaf Perillaldehyde in Perilla frutescens (L.) Britton","authors":"Yuh-Jyuan Lee, Chwen-Ming Yang","doi":"10.6156/JTAR/2009.05802.05","DOIUrl":"https://doi.org/10.6156/JTAR/2009.05802.05","url":null,"abstract":"Perilla frutescens (L.) Britton, a member of Lamiaceae and a native dicot in Asia, is now distributed worldwide including Taiwan. To further explore its uses as a commercial crop, a comprehensive study regarding the growth behavior and chemical components of this plant species is needed. In the present research, changes in growth traits, including plant height, leaf area index and weights of aerial parts, and leaf perillaldehyde (PA) concentration and content were investigated for plants grown in different growing seasons in the experimental period from 2004 to 2006. The five-leaf stage seedlings were transplanted in March (Season I), April (Season II), May (Season III) June (Season IV) and July (Season V), respectively. Concentration of leaf PA was determined by High Performance Liquid Chromatography (HPLC). Results showed that plant height was taller and leaf area index and fresh weights of aerial parts were larger for plants grown in cooler Season I relative to those plants grown in other warmer seasons (Seasons II-V), implying that warming conditions during growing periods was not in favor to plant growth. Seeds harvested at maturity were found varied in different growing seasons and seed produced in Season V was the lowest. In contrast, the highest value of 500-seed weight also obtained from seeds produced in Seasons V. The PA concentration in the primary leaves on the main stem from position 10 to 15 was higher than others and the quadratic pattern was similar in different growing seasons in 2004–2006. The distribution pattern of leaf PA content was in accordance with leaf PA concentration during the growing periods. In considering the proportions of PA distributed in leaves emerged on the main stem and the lateral branches, the proper time period to harvest the highest quantity of leaf PA for a single plant was from 110 to 120 days after transplanting.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134362348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-03-01DOI: 10.6156/JTAR/2009.05801.01
Chao-Chia Huang, R. Paull
The ethylene production by Oncidium 'Gower Ramsey' buds and florets and response to 1-methylcyclopropene (1-MCP) were investigated. Small flower buds produced little ethylene (0.12 nL g^(-1) hr^(-1)) and the production declined to being undetectable as the bud grew and became a floret. Ethylene production increased again as the floret began to senesce. A peak of ethylene production occurred (1.5 nL g^(-1) hr^(-1)) at the half senescent floret stage. The rises in ethylene production occurred after the start of floret senescence. Floret buds were more sensitive to exogenous ethylene than the floret, as it took 5 versus 7 days for senescence symptoms to appear at 0.03 nL mL^(-1) exogenous ethylene. The ethylene inhibitor, 1-MCP was effective in prolonging the vase life of both ethylene-treated and non-ethylene-treated cut sprays. When 1-MCP was applied again after 7 days to the same sprays, senescence symptom development was further delayed. Concentration of 1-MCP as low as 235 nL m^(-3) which was one fourth of the concentration recommended for commercial use extended vase life. Bud opening also increased following 1-MCP treatment in ethylene-treated sprays. No difference in response to 1-MCP treatment was found when the treatment was varied from 2 to 12 h and from 10℃ to 28℃. A treatment with 1-MCP was a useful tool to extend vase life of Oncidium cut flower sprays.
{"title":"The Responses of Oncidium Cut Flowers to Ethylene and 1-MCP","authors":"Chao-Chia Huang, R. Paull","doi":"10.6156/JTAR/2009.05801.01","DOIUrl":"https://doi.org/10.6156/JTAR/2009.05801.01","url":null,"abstract":"The ethylene production by Oncidium 'Gower Ramsey' buds and florets and response to 1-methylcyclopropene (1-MCP) were investigated. Small flower buds produced little ethylene (0.12 nL g^(-1) hr^(-1)) and the production declined to being undetectable as the bud grew and became a floret. Ethylene production increased again as the floret began to senesce. A peak of ethylene production occurred (1.5 nL g^(-1) hr^(-1)) at the half senescent floret stage. The rises in ethylene production occurred after the start of floret senescence. Floret buds were more sensitive to exogenous ethylene than the floret, as it took 5 versus 7 days for senescence symptoms to appear at 0.03 nL mL^(-1) exogenous ethylene. The ethylene inhibitor, 1-MCP was effective in prolonging the vase life of both ethylene-treated and non-ethylene-treated cut sprays. When 1-MCP was applied again after 7 days to the same sprays, senescence symptom development was further delayed. Concentration of 1-MCP as low as 235 nL m^(-3) which was one fourth of the concentration recommended for commercial use extended vase life. Bud opening also increased following 1-MCP treatment in ethylene-treated sprays. No difference in response to 1-MCP treatment was found when the treatment was varied from 2 to 12 h and from 10℃ to 28℃. A treatment with 1-MCP was a useful tool to extend vase life of Oncidium cut flower sprays.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123953056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-03-01DOI: 10.6156/JTAR/2009.05801.06
Tzuching Wang, Hou-I Lee, Chiching Yang
The total antioxidant capacity (TAC), scavenging ability on 2,2'-azinobis (3-ethylbenzothiazoline-6-sulphonic acid) and superoxide anions, chelating effect on copper ions, and anti FeCl2/H2O2-stimulated linoleic acid peroxidation of aqueous extract of Pteris multifida Poiret (AEPM), were determined in vitro. Results indicated that the AEPM showed a high TAC (86.7% at 20 mg/mL) with ferric thiocyanate method and exhibited the highest Trolox equivalent antioxidant capacity (1.42 mM at 10mg/mL). The scavenging ability on superoxide anion and chelating effect on copper ions of AEPM were 95.4% and 44.7% at 20mg/mL, respectively. The linoleic acid peroxidation inhibition percentage was increased with increasing concentrations and the IC50 was 1000±42μg/mL.
{"title":"Evaluation of In Vitro Antioxidant and Anti-Lipid Peroxidation Activities of Ching-Pien-Tsao (Pteris multifida Poiret)","authors":"Tzuching Wang, Hou-I Lee, Chiching Yang","doi":"10.6156/JTAR/2009.05801.06","DOIUrl":"https://doi.org/10.6156/JTAR/2009.05801.06","url":null,"abstract":"The total antioxidant capacity (TAC), scavenging ability on 2,2'-azinobis (3-ethylbenzothiazoline-6-sulphonic acid) and superoxide anions, chelating effect on copper ions, and anti FeCl2/H2O2-stimulated linoleic acid peroxidation of aqueous extract of Pteris multifida Poiret (AEPM), were determined in vitro. Results indicated that the AEPM showed a high TAC (86.7% at 20 mg/mL) with ferric thiocyanate method and exhibited the highest Trolox equivalent antioxidant capacity (1.42 mM at 10mg/mL). The scavenging ability on superoxide anion and chelating effect on copper ions of AEPM were 95.4% and 44.7% at 20mg/mL, respectively. The linoleic acid peroxidation inhibition percentage was increased with increasing concentrations and the IC50 was 1000±42μg/mL.","PeriodicalId":159002,"journal":{"name":"Taiwan Agricultural Research","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124065031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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