Tanaman obat tradisional merupakan potensi teknik pengobatan yang diketahui lebih aman dan murah. Pengembangan kajian ilmiah tanaman obat mendorong dilakukannya penelitian terhadap potensi tanaman sebagai antimikroba. Salah satu tanaman obat yang berkhasiat adalah Delima Merah (Punica granatum). Untuk mengetahui kemampuan antimikroba Punica granatum, maka dilakukan penelitian dengan memakai ekstrak etanol daun Punica granatum yang dibuat kedalam seri konsentrasi yang bervariasi dari terkecil hingga terbesar. Mikroba patogen yang digunakan berjumlah delapan mikroba patogen dengan masing-masing tiga kali ulangan. Hasil menunjukkan bahwa jumlah konsentrasi berpengaruh terhadap zona hambat yang terbentuk untuk masing-masing mikroba uji. Dapat dismpulkan bahwa semakin tinggi konsentrasi ekstrak etanol daun delima merah maka semakin tinggi zona hambat yang terbentuk.
{"title":"AKTIVITAS ANTIMIKROBA DELIMA MERAH DALAM MENGHAMBAT PERTUMBUHAN MIKROBA PATOGEN","authors":"A. S. S. Pulungan, Fitri Chairani, W. Wulandari","doi":"10.34007/JONAS.V2I1.28","DOIUrl":"https://doi.org/10.34007/JONAS.V2I1.28","url":null,"abstract":"Tanaman obat tradisional merupakan potensi teknik pengobatan yang diketahui lebih aman dan murah. Pengembangan kajian ilmiah tanaman obat mendorong dilakukannya penelitian terhadap potensi tanaman sebagai antimikroba. Salah satu tanaman obat yang berkhasiat adalah Delima Merah (Punica granatum). Untuk mengetahui kemampuan antimikroba Punica granatum, maka dilakukan penelitian dengan memakai ekstrak etanol daun Punica granatum yang dibuat kedalam seri konsentrasi yang bervariasi dari terkecil hingga terbesar. Mikroba patogen yang digunakan berjumlah delapan mikroba patogen dengan masing-masing tiga kali ulangan. Hasil menunjukkan bahwa jumlah konsentrasi berpengaruh terhadap zona hambat yang terbentuk untuk masing-masing mikroba uji. Dapat dismpulkan bahwa semakin tinggi konsentrasi ekstrak etanol daun delima merah maka semakin tinggi zona hambat yang terbentuk.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"515 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77093256","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}
Cymbidium hartinahianum atau anggrek Hartinah adalah salah satu tumbuhan endemik di Pulau Sumatera bagian utara (Provinsi Aceh dan Sumatera Utara). Selain endemik anggrek ini termasuk anggrek yang di lindungi. Tujuan penelitian ini untuk mengetahui habitat dari C. hartinahianum. Jenis penelitian yang digunakan adalah deskriptif. Data yang dgunakan adalah data koordinat, data yang diperoleh selanjutnya akan di masukkan kedalam MS. EXCEL. Data tersebut di konversi menjadi data decimal kemudian di kombinasikan atau di gabungkan dengan data habitat elevasi, curah hujan, kemiringan lereng, tutupan lahan, jenis tanah dan lahan kritis menggunakan software ArcGIS Berdasarkan hasil identifikasi habitat menggunakan pendekatan Sistem Informasi Geografis di peroleh Habitat Anggrek Tien Soeharto (C. hartinahianum) secara umum ada jenis tanah Ao104-2/3c (Orthic acrisol), Curah Hujan menempati 1500-2000 mm/tahun, kedalam tipe tutupan lahan hutan lahan kering sekunder, Kemiringan lereng 60, Tipe lahan kritis, elevasi 2092-2600 m dpl.
{"title":"IDENTIFIKASI HABITAT ANGGREK TIEN SOEHARTO (CYMBIDIUM HARTINAHIANUM JB COMBER & NASUTION) DI GUNUNG SIBUATAN SUMATERA UTARA","authors":"Hary Prakasa, Feby Indriani Syafitri, Ibnu Arief Habibie Pulungan, Desi Sakinah Tinendung, Yusran Efendi Ritonga","doi":"10.34007/JONAS.V2I1.29","DOIUrl":"https://doi.org/10.34007/JONAS.V2I1.29","url":null,"abstract":"Cymbidium hartinahianum atau anggrek Hartinah adalah salah satu tumbuhan endemik di Pulau Sumatera bagian utara (Provinsi Aceh dan Sumatera Utara). Selain endemik anggrek ini termasuk anggrek yang di lindungi. Tujuan penelitian ini untuk mengetahui habitat dari C. hartinahianum. Jenis penelitian yang digunakan adalah deskriptif. Data yang dgunakan adalah data koordinat, data yang diperoleh selanjutnya akan di masukkan kedalam MS. EXCEL. Data tersebut di konversi menjadi data decimal kemudian di kombinasikan atau di gabungkan dengan data habitat elevasi, curah hujan, kemiringan lereng, tutupan lahan, jenis tanah dan lahan kritis menggunakan software ArcGIS Berdasarkan hasil identifikasi habitat menggunakan pendekatan Sistem Informasi Geografis di peroleh Habitat Anggrek Tien Soeharto (C. hartinahianum) secara umum ada jenis tanah Ao104-2/3c (Orthic acrisol), Curah Hujan menempati 1500-2000 mm/tahun, kedalam tipe tutupan lahan hutan lahan kering sekunder, Kemiringan lereng 60, Tipe lahan kritis, elevasi 2092-2600 m dpl.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82246742","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}
Suku Baduy merupakan salah satu dari banyaknya suku pedalaman yang ada di Indonesia. Suku ini terkenal dengan kepiawaiannya dalam mengelola hutan. Kehidupan mereka sangat bergantung kepada hutan, mulai dari makan, mata pencaharian bahkan obat-obatan. Buah pepaya atau Carica papaya merupakan salah satu buah yang biasa digunakan oleh orang Baduy dalam meningkatkan produksi ASI untuk kelancaran menyusui pada seorang Ibu. Hal itu ternyata benar, karena dalam buah pepaya terkandung Fitokimia sebagai senyawa lactagogum seperti alkaloid, polifenol, steroid, flavonoid, dan senyawa lainnya yang dapat meningkatkan dan memperlancar produksi ASI. Senyawa-senyawa tersebut mempengaruhi hormon oksitosin dan prolactin yang berfungsi untuk menstimulasi kelenjar mammae mensekresikan ASI.
{"title":"PEMANFAATAN BUAH PEPAYA OLEH MASYARAKAT BADUY DALAM MEMPERLANCAR PROSES LAKTASI","authors":"M. Mulyati","doi":"10.34007/JONAS.V2I1.30","DOIUrl":"https://doi.org/10.34007/JONAS.V2I1.30","url":null,"abstract":"Suku Baduy merupakan salah satu dari banyaknya suku pedalaman yang ada di Indonesia. Suku ini terkenal dengan kepiawaiannya dalam mengelola hutan. Kehidupan mereka sangat bergantung kepada hutan, mulai dari makan, mata pencaharian bahkan obat-obatan. Buah pepaya atau Carica papaya merupakan salah satu buah yang biasa digunakan oleh orang Baduy dalam meningkatkan produksi ASI untuk kelancaran menyusui pada seorang Ibu. Hal itu ternyata benar, karena dalam buah pepaya terkandung Fitokimia sebagai senyawa lactagogum seperti alkaloid, polifenol, steroid, flavonoid, dan senyawa lainnya yang dapat meningkatkan dan memperlancar produksi ASI. Senyawa-senyawa tersebut mempengaruhi hormon oksitosin dan prolactin yang berfungsi untuk menstimulasi kelenjar mammae mensekresikan ASI.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73745903","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}
Penelitian ini bertujuan untuk mengetahui perencanaan pembelajaran dan hasil belajar dalam mengimplementasi aplikasi google classroom pada pembelajaran daring masa pandemi Covid-19 untuk meningkatkan hasil belajar IPA pada materi pewarisan sifat pada mahkluk hidup siswa kelas IX-B SMP Negeri 1 Stabat Kab. Langkat T.P. 2019/2020. Penelitian ini dilakukan dengan melaksanakan tindakan kelas (PTK) berupa kegiatan refleksi awal dan melakukan observasi untuk mengidentifikasi masalah yang terjadi di kelas, merencanakan pembelajaran, melaksanakan tindakan, mengamati dan merefleksikan. Hasil penelitian PTK diperoleh: 1) Pada siklus I ditemukan 20 orang tuntas atau sekitar 62,5%, dan tidak tuntas sebanyak 12 orang atau sekitar 37,5%. 2) Pada siklus II sebanyak 22 orang atau sekitar 91,7% dan tidak sebanyak 2 orang atau sekitar 8,3%. Dapat disimpulkan bahwa penerapan aplikasi pembelajaran google classrom dapat meningkatkan hasil belajar siswa di SMP Negeri 1 Stabat Kab. Langkat T.P. 2019/2020 dengan pembelajaran daring pada masa pandemi Covid-19, pada materi pewarisan sifat pada mahkluk hidup.
本研究旨在了解covid身高:t.p.: 2020。这项研究是通过执行最初反思活动的课堂行动(PTK)和进行观察来识别课堂上发生的问题，计划学习，执行行动，观察和反思。PTK研究结果:1)在I循环中发现20个完整的或约62.5%的人，不完整的12个或大约37.5%。2)在II周期中，约有22人或约有91.7%，而不是2人或约8.3%。可以得出结论，谷歌课堂学习应用可以提高学生在SMP Negeri 1 Stabat Kab的学习成绩。2011 /2020年，在Covid-19大流行期间，网络学习生物遗传特征材料。
{"title":"IMPLEMENTASI APLIKASI GOOGLE CLASSROOM PADA PEMBELAJARAN DARING MASA PANDEMI COVID-19 UNTUK MENINGKATKAN HASIL BELAJAR IPA PADA MATERI PEWARISAN SIFAT PADA MAHKLUK HIDUP","authors":"Linda Sari","doi":"10.34007/JONAS.V2I1.53","DOIUrl":"https://doi.org/10.34007/JONAS.V2I1.53","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui perencanaan pembelajaran dan hasil belajar dalam mengimplementasi aplikasi google classroom pada pembelajaran daring masa pandemi Covid-19 untuk meningkatkan hasil belajar IPA pada materi pewarisan sifat pada mahkluk hidup siswa kelas IX-B SMP Negeri 1 Stabat Kab. Langkat T.P. 2019/2020. Penelitian ini dilakukan dengan melaksanakan tindakan kelas (PTK) berupa kegiatan refleksi awal dan melakukan observasi untuk mengidentifikasi masalah yang terjadi di kelas, merencanakan pembelajaran, melaksanakan tindakan, mengamati dan merefleksikan. Hasil penelitian PTK diperoleh: 1) Pada siklus I ditemukan 20 orang tuntas atau sekitar 62,5%, dan tidak tuntas sebanyak 12 orang atau sekitar 37,5%. 2) Pada siklus II sebanyak 22 orang atau sekitar 91,7% dan tidak sebanyak 2 orang atau sekitar 8,3%. Dapat disimpulkan bahwa penerapan aplikasi pembelajaran google classrom dapat meningkatkan hasil belajar siswa di SMP Negeri 1 Stabat Kab. Langkat T.P. 2019/2020 dengan pembelajaran daring pada masa pandemi Covid-19, pada materi pewarisan sifat pada mahkluk hidup.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77816675","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}
Extensive glacier recession has prevailed for almost 100 years in the Scandes and other parts of the world. At the lower fringe and forefields of shrinking alpine glaciers and ice patches, a plethora of ancient tree remnants is recovered. This is presumably the first time of exposure since burialby ice thousands of years ago. These remains represent prior stands of virtually all boreal tree species, currently growing in northern Scandinavia. As a consequence, a previously unexpected and patchily treed high-mountain landscape emerges, in some cases 600-700 m higher than present-day treelines. This difference in treeline positions between then and now (corrected for land uplift) indicates that summer temperatures have declined by about 3 °C since the early Holocenetreeline maximum. Radiocarbon-dating reveals that the age of the tree remnants ranges between c. 16 800 and 2000 cal. yr BP. Initially,the high-mountainpeaks stood out asnunataks in a surrounding for long glaciated landscape at lower elevations. As the ice sheet gradually shrinked, glacier cirques and hollows became filled with tree groves, in a matrix of alpine tundra. In addition to Betulapubescens ssp. czerepanovii , Piceaabies and Pinussylvestris , these high-elevation enclaves contained tree species, previously unknown to such high positions and so early. These are Piceaabies and a species currently considered as exotic to Scandinavia, namely Larixsibirica . In response to gradual climate cooling since the middle Holocene, the tree stands declined and dead trees were eventually entombed by glacier ice, which is currently disintegrating.
{"title":"Shrinking glaciers and ice patches disclose megafossil trees and provide a vision of the Late-glacial and Early post-glacial subalpine/alpine landscape in the Swedish Scandes – review and perspective","authors":"L. Kullman, Lisa Öberg","doi":"10.15640/jns.v8n2a1","DOIUrl":"https://doi.org/10.15640/jns.v8n2a1","url":null,"abstract":"Extensive glacier recession has prevailed for almost 100 years in the Scandes and other parts of the world. At the lower fringe and forefields of shrinking alpine glaciers and ice patches, a plethora of ancient tree remnants is recovered. This is presumably the first time of exposure since burialby ice thousands of years ago. These remains represent prior stands of virtually all boreal tree species, currently growing in northern Scandinavia. As a consequence, a previously unexpected and patchily treed high-mountain landscape emerges, in some cases 600-700 m higher than present-day treelines. This difference in treeline positions between then and now (corrected for land uplift) indicates that summer temperatures have declined by about 3 °C since the early Holocenetreeline maximum. Radiocarbon-dating reveals that the age of the tree remnants ranges between c. 16 800 and 2000 cal. yr BP. Initially,the high-mountainpeaks stood out asnunataks in a surrounding for long glaciated landscape at lower elevations. As the ice sheet gradually shrinked, glacier cirques and hollows became filled with tree groves, in a matrix of alpine tundra. In addition to Betulapubescens ssp. czerepanovii , Piceaabies and Pinussylvestris , these high-elevation enclaves contained tree species, previously unknown to such high positions and so early. These are Piceaabies and a species currently considered as exotic to Scandinavia, namely Larixsibirica . In response to gradual climate cooling since the middle Holocene, the tree stands declined and dead trees were eventually entombed by glacier ice, which is currently disintegrating.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89648004","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}
: In the present paper, the impact of cyclones and anticyclones phenomena on the stability of existence of the Great Red Spot on Jupiter, have been considered. In this situation, concerning all characteristically parameters, which noted by some issues of investigation, and the impact of these factors on the rotational velocity of the system of Jupiter, have been considered. For this reason, dispersion law of gravitational-gyroscopic wave, the stability of radio-waves and magneto-spherical field, magnetic energy, also mechanical coupled rotation as frictional, which effects on the solid pole (cool process) and gas-liquid pole (hot process), has been investigated by using turbulence process. The basic process of this problem solution is describing by using the mathematical model, and it is an adequate equation of motion. In this case, the new so-called terminology as a quasi-laminar with nearly zero viscose and Reynolds number, which aspires to infinity in case of turbulent transition, has been introduced. Motion equation and hydrostatic equilibrium also considered for the stability of the rotation of planetary GRS. It should be noted that, for the stability of the rotations of GRS on Jupiter, in complex form should be carried out conditions of the Rossby regime and it confirms the rotation process stability. Other hypotheses on influence factors of GRS, including structure part of the process of convection-diffusion law on Jupiter, have been considered.
{"title":"Influences the factors of Cyclones, Anticyclones, Circulation and Rotation to the Steady Dynamic of Great Red Spot of Jupiter","authors":"A. Atai, Mahammad A.Nurmammadov","doi":"10.15640/jns.v8n2a2","DOIUrl":"https://doi.org/10.15640/jns.v8n2a2","url":null,"abstract":": In the present paper, the impact of cyclones and anticyclones phenomena on the stability of existence of the Great Red Spot on Jupiter, have been considered. In this situation, concerning all characteristically parameters, which noted by some issues of investigation, and the impact of these factors on the rotational velocity of the system of Jupiter, have been considered. For this reason, dispersion law of gravitational-gyroscopic wave, the stability of radio-waves and magneto-spherical field, magnetic energy, also mechanical coupled rotation as frictional, which effects on the solid pole (cool process) and gas-liquid pole (hot process), has been investigated by using turbulence process. The basic process of this problem solution is describing by using the mathematical model, and it is an adequate equation of motion. In this case, the new so-called terminology as a quasi-laminar with nearly zero viscose and Reynolds number, which aspires to infinity in case of turbulent transition, has been introduced. Motion equation and hydrostatic equilibrium also considered for the stability of the rotation of planetary GRS. It should be noted that, for the stability of the rotations of GRS on Jupiter, in complex form should be carried out conditions of the Rossby regime and it confirms the rotation process stability. Other hypotheses on influence factors of GRS, including structure part of the process of convection-diffusion law on Jupiter, have been considered.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"130 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85770284","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}
Úrsula Monteiro, B. Díaz, R. Saldaña, V. Sotero, D. García
{"title":"Allelophatic and Antioxidant Activity of Eight Amazon Species from De Tamshiyacu Tahuayo Reserve.","authors":"Úrsula Monteiro, B. Díaz, R. Saldaña, V. Sotero, D. García","doi":"10.15640/jns.v7n1a4","DOIUrl":"https://doi.org/10.15640/jns.v7n1a4","url":null,"abstract":"","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91236614","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}
Úrsula Monteiro, B. Díaz, R. Saldaña, V. Sotero, D. García
In this study were evaluated the antioxidant activity (AAO), allelopathic (ALL) and bioactive substances present in leaves of eight plant species from the Tamshiyacu-Tahuayo Community (Loreto-Peru). The AAO evaluation was performed by the free radical DPPH capture method, using dry and pulverized leaves, macerated in methanol for fifteen days, solutions of 0.015.0 mg/mL and 0.1 mM DPPH were prepared, reading was performed in the UV/vis spectrometer at 517 nm, for the ALL was performed by the Petri plates method, using methanolics extracts of fresh leaves with concentrations of 0.150.0 mg/mL against the growth of pregerminated seeds of Latuca sativa , the reading was made by measuring the hypocotyl and radicle of the seedling. In the results of species with high AAO were Virola sebifera, Caryocar glabrum and Tapirira guianensis, which present a percentage of inhibition superior to 50% in concentrations of 5.0 mg/mL. The species with high ALL are Xylopia benthami, Malouetia naias and Virola surinamensis, reaching an EC50 for the radicle at concentrations lower than 1.0 50.0 mg/L. The concentration of phenolic compounds for these species varied from 115217,18-321815,14 mg/kg, flavonoids from 1030,79-1441,16 mg/kg and proanthocyanidins from 0.65-1,77 mg / 100g. Total alkaloids range from 0,0 68,2 m/g evaluation, presenting differences between them.
{"title":"Allelophatic and Antioxidant Activity of Eight Amazon Species from De Tamshiyacu Tahuayo Reserve","authors":"Úrsula Monteiro, B. Díaz, R. Saldaña, V. Sotero, D. García","doi":"10.15640/jns.v7n1a2","DOIUrl":"https://doi.org/10.15640/jns.v7n1a2","url":null,"abstract":"In this study were evaluated the antioxidant activity (AAO), allelopathic (ALL) and bioactive substances present in leaves of eight plant species from the Tamshiyacu-Tahuayo Community (Loreto-Peru). The AAO evaluation was performed by the free radical DPPH capture method, using dry and pulverized leaves, macerated in methanol for fifteen days, solutions of 0.015.0 mg/mL and 0.1 mM DPPH were prepared, reading was performed in the UV/vis spectrometer at 517 nm, for the ALL was performed by the Petri plates method, using methanolics extracts of fresh leaves with concentrations of 0.150.0 mg/mL against the growth of pregerminated seeds of Latuca sativa , the reading was made by measuring the hypocotyl and radicle of the seedling. In the results of species with high AAO were Virola sebifera, Caryocar glabrum and Tapirira guianensis, which present a percentage of inhibition superior to 50% in concentrations of 5.0 mg/mL. The species with high ALL are Xylopia benthami, Malouetia naias and Virola surinamensis, reaching an EC50 for the radicle at concentrations lower than 1.0 50.0 mg/L. The concentration of phenolic compounds for these species varied from 115217,18-321815,14 mg/kg, flavonoids from 1030,79-1441,16 mg/kg and proanthocyanidins from 0.65-1,77 mg / 100g. Total alkaloids range from 0,0 68,2 m/g evaluation, presenting differences between them.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77273866","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}
D. García, B. Díaz, R. Saldaña, Úrsula Monteiro, V. Sotero, J. Chávez
The aim of this study was evaluate the antioxidant capacity of the extracts of the leaves of 31 vegetable species collected at the vicinity of the town of Tamshiyacu, in the department of Loreto, Peru. The percentage of inhibition of free radicals of 2,2-diphenyl-1-picrylhydrazyl (DPPH) was calculated. From the concentration of the best species with high activity, which were three, it was realized the analysis of total concentration of phenolic compounds and alkaloids was analyzed by UV/Vis spectrophotometry. Besides the metanolics extracts were submitted to fractionation in chromatographic column and the fractions with similar molecules, grouped by thin layer chromatography. The final fractions were analyzed by a Gas Chromatograph coupled to mass spectrometry (CG-MS), to identify the molecules present in them and causing this activity. According to the results, the species that showed the best activity at concentrations lower than 5.0 mg/ml were Virola sebifera, Caryocar glabrum and Tapirira guianensis. The concentration of total phenolic compounds was 18580.9, 15180.7 and 11568.7 mg/100g for V. sebifra, C. glabrum and T. guiannensis, and total alkaloids were 36.6, 0.0 and 74.0 mg/100g for these same species. The main secondary metabolites are 3,5-di-tert-butyl-4-hydroxyanisole and normolatedol and caryophyllene, in V. sebifera, diisooctyl dicarboxylate.1,2-benzene and 3, 5-bis (1,1-dimetyl etill-phenol in C. glabrum and diisoctylphthalate, α-panasinseno, and vitamin E in T. guianensis.
{"title":"Evaluation of the Antioxidant Activity of 31 Amazonian Vegetable Species of Tamshiyacu Loreto-Peru","authors":"D. García, B. Díaz, R. Saldaña, Úrsula Monteiro, V. Sotero, J. Chávez","doi":"10.15640/JNS.V7N1A1","DOIUrl":"https://doi.org/10.15640/JNS.V7N1A1","url":null,"abstract":"The aim of this study was evaluate the antioxidant capacity of the extracts of the leaves of 31 vegetable species collected at the vicinity of the town of Tamshiyacu, in the department of Loreto, Peru. The percentage of inhibition of free radicals of 2,2-diphenyl-1-picrylhydrazyl (DPPH) was calculated. From the concentration of the best species with high activity, which were three, it was realized the analysis of total concentration of phenolic compounds and alkaloids was analyzed by UV/Vis spectrophotometry. Besides the metanolics extracts were submitted to fractionation in chromatographic column and the fractions with similar molecules, grouped by thin layer chromatography. The final fractions were analyzed by a Gas Chromatograph coupled to mass spectrometry (CG-MS), to identify the molecules present in them and causing this activity. According to the results, the species that showed the best activity at concentrations lower than 5.0 mg/ml were Virola sebifera, Caryocar glabrum and Tapirira guianensis. The concentration of total phenolic compounds was 18580.9, 15180.7 and 11568.7 mg/100g for V. sebifra, C. glabrum and T. guiannensis, and total alkaloids were 36.6, 0.0 and 74.0 mg/100g for these same species. The main secondary metabolites are 3,5-di-tert-butyl-4-hydroxyanisole and normolatedol and caryophyllene, in V. sebifera, diisooctyl dicarboxylate.1,2-benzene and 3, 5-bis (1,1-dimetyl etill-phenol in C. glabrum and diisoctylphthalate, α-panasinseno, and vitamin E in T. guianensis.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89181817","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 : 2010-12-01DOI: 10.2478/V10020-010-0028-4
K. Górska-Koplińska, A. Źróbek-Sokolnik, R. Górecki, L. Lahuta
This study compares the soluble sugar content of zygotic and somatic pea embryos. It was noted that mature somatic embryos differed from zygotic embryos with respect to carbohydrate composition. Mature zygotic pea embryos contained glucose, myo-inositol, sucrose, maltose, galactinol, galactosyl-cyclitols, raffinose, stachyose and verbascose. The presence of maltose, galactosyl-cyclitols, stachyose and verbascose was not determined in somatic embryos, and their total soluble sugar content was below that of zygotic embryos. High sucrose levels in somatic embryos most probably resulted from the presence of sucrose in the growth medium. Monocotyledonous and irregular somatic embryos were characterized by a different sugar profile than regularly shaped somatic embryos and seeds.
{"title":"A COMPARISON OF SOLUBLE SUGAR ACCUMULATION IN ZYGOTIC AND SOMATIC PEA EMBRYOS","authors":"K. Górska-Koplińska, A. Źróbek-Sokolnik, R. Górecki, L. Lahuta","doi":"10.2478/V10020-010-0028-4","DOIUrl":"https://doi.org/10.2478/V10020-010-0028-4","url":null,"abstract":"This study compares the soluble sugar content of zygotic and somatic pea embryos. It was noted that mature somatic embryos differed from zygotic embryos with respect to carbohydrate composition. Mature zygotic pea embryos contained glucose, myo-inositol, sucrose, maltose, galactinol, galactosyl-cyclitols, raffinose, stachyose and verbascose. The presence of maltose, galactosyl-cyclitols, stachyose and verbascose was not determined in somatic embryos, and their total soluble sugar content was below that of zygotic embryos. High sucrose levels in somatic embryos most probably resulted from the presence of sucrose in the growth medium. Monocotyledonous and irregular somatic embryos were characterized by a different sugar profile than regularly shaped somatic embryos and seeds.","PeriodicalId":39364,"journal":{"name":"Polish Journal of Natural Sciences","volume":"25 1","pages":"313-322"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68932192","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：