发布求助
文献互助 智能选刊 最新文献

Proceedings of the 2nd International Conference of Essential Oils最新文献

筛选
英文 中文
Conjugation Reaction between Citronellal and L-Tyrosine and Its Antimicrobial Properties against Bacteria and Fungi 香茅醛与l -酪氨酸的偶联反应及其对细菌和真菌的抗菌性能
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009957000740079
Rila Suryani, N. Nazaruddin, K. Hasballah, Muhammad Diah, Hardi Yusuf, Juniarti, Syaifullah Muhammad, Khairan
{"title":"Conjugation Reaction between Citronellal and L-Tyrosine and Its Antimicrobial Properties against Bacteria and Fungi","authors":"Rila Suryani, N. Nazaruddin, K. Hasballah, Muhammad Diah, Hardi Yusuf, Juniarti, Syaifullah Muhammad, Khairan","doi":"10.5220/0009957000740079","DOIUrl":"https://doi.org/10.5220/0009957000740079","url":null,"abstract":": The study of citronellal with L-tyrosin conjugation for antimicrobial properties has been conducted. The aim of this study to determine the relationship stucture between two compounds citronellal and L-tyrosine on antimicrobial activity against Staphylococcus aureus , Escherichia coli , and Candida albicans . The conjugation product obtained was yellow-white solid amorphous with the Rf value was 0.84 and the percentage of yield was 71.12%. The FT-IR spectra peak at 3205.69 cm -1 is represented the N-H stretching vibration from L-tyrosine, while the spectra appears at 1460.11 - 1438.90 cm -1 are represented the C=N which derived from imine or immonium from shift base reaction between citronellal and L-tyrosine. The GC-MS analysis showed that the peak 15 observed at RT 10.27 min. be expected a conjugation product with the m/z 316 [ M +H] + ion. The antimicrobial activity were determined by well diffusion method and the results showed that product of conjugation were have no antimicrobail activities at concentration tested.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89084381","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}
引用次数: 0
Evaluation of Antibacterial and Antioxidant Effects of Mix Essential Oil for Oral Health Care 口腔保健用混合精油的抗菌和抗氧化作用评价
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009957801190122
Juniarti, M. Abdussalam, I. Yuda, Indra Kusuma
{"title":"Evaluation of Antibacterial and Antioxidant Effects of Mix Essential Oil for Oral Health Care","authors":"Juniarti, M. Abdussalam, I. Yuda, Indra Kusuma","doi":"10.5220/0009957801190122","DOIUrl":"https://doi.org/10.5220/0009957801190122","url":null,"abstract":": Essential oil have some antioxidant and antimicrobial properties. The aim of this study was to determine the chemical compounds, antioxidant and antimicrobial activities of essential oil. The analysis of the mix essential oil was carried out using gas chromatography mass Spectrometry. The antioxidant activity of the essential oil was also evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. Antimicrobial properties of the essential oil were assessed against Enterococcus faecalis, Streptococcus mutans, Streptococcus sanguinis using the disk diffusion method. Free radical scavenging potentials showed values for IC 50 in 194 µg/ml for mix essential oil, which are close to the natural antioxidant (ascorbic acid) with an IC 50 of 2.98 µg/mL. The major of mix essential oil were α -pinene (24.54%), D-limonen (18.00%), cis-1- methyl-4-(1-methylethenyi)-l-cyclohexane (14.95%), 3-carene (8.92%), L-menthone (8.26) and β -pinene (5.72%).","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91280875","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}
引用次数: 0
Synthesis of Rhodinol Ester from Citronella Oil Reduction Product 香茅油还原产物合成Rhodinol酯
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009973101650169
A. Nurdin, R. Yunilawati
{"title":"Synthesis of Rhodinol Ester from Citronella Oil Reduction Product","authors":"A. Nurdin, R. Yunilawati","doi":"10.5220/0009973101650169","DOIUrl":"https://doi.org/10.5220/0009973101650169","url":null,"abstract":": Rhodinol is a mixture of citronellol and geraniol that can be esterified using organic acids into citronellol esters and geraniol esters to generate a specific odour as fragrances. Rhodinol esters in this study were synthesized from citronella oil by first reducing to convert the citronellal in citronella oil into citronellol. Reduction was carried out using NaBH 4 in conditions with ethanol as a solvent and without a solvent and the variation of mole ratio. Esterification of reduction product (rhodinol) was done to produce rhodinol ester. Reduction citronellal in citronella oil was efficient without solvent in the mole ratio of citronellal and NaBH 4 1:1, and successfully converted citronellal to citronellol with the rhodinol total (citronellol and geraniol) was 65.85%. Esterification of rhodinol produced 69.69% rhodinol ester which contains 55.16 % citronellyl acetate and 14.53% geranyl acetate.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74647315","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}
引用次数: 0
Hybrid of Wavelet Feature Extraction and LVQ Neural Network to Recognize Patchouli Variety using Leaf Images 基于小波特征提取和LVQ神经网络的广藿香品种图像识别
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009954800220028
C. Dewi
{"title":"Hybrid of Wavelet Feature Extraction and LVQ Neural Network to Recognize Patchouli Variety using Leaf Images","authors":"C. Dewi","doi":"10.5220/0009954800220028","DOIUrl":"https://doi.org/10.5220/0009954800220028","url":null,"abstract":": Patchouli consist of some varieties that have different patchouli alcohol (PA). This variety can be recognized by experts who dabbling with patchouli plants through observation of shape and texture of the leaf. This study introduced a new method to identify patchouli varieties by utilizing leaf images. The wavelet feature extraction was used to obtain leaf texture characteristics. The varieties then are identified by using Learning Vector Quantization (LVQ) Neural Network algorithm. The results of testing on 40 leaf image data showed the value of recognition accuracy of patchouli varieties reached 83, 33%. This result is obtained by wavelet parameters namely doubechies level 3, doubechies coefficient 3, and LVQ parameters, namely learning rate 0.1 learning rate reduction constant 0.2. These results can be said to be quite good considering that the patchouli leaf tested have almost similar shape and color.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87518549","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}
引用次数: 0
Soil Nutrient Content Classification for Essential Oil Plants using kNN 基于kNN的精油植物土壤养分含量分类
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009957400960100
Yoke Kusuma Arbawa, C. Dewi
{"title":"Soil Nutrient Content Classification for Essential Oil Plants using kNN","authors":"Yoke Kusuma Arbawa, C. Dewi","doi":"10.5220/0009957400960100","DOIUrl":"https://doi.org/10.5220/0009957400960100","url":null,"abstract":": Essential oils can grow well and produce good quality of essential oils if planted in an area that has sufficient nutrient content. In this study, the classification of soil nutrient content was carried out using soil images as an alternative to soil testing in the laboratory. The nutrient content identified in this study is Nitrogen, Phosphorus, and Potassium (N, P, K). The identification process begins with the extraction of soil texture features using the Gray-Level Cooccurrence Matrix (GLCM) and continues with the classification of nutrient content using k-NN. As a comparison in the calculation, the validation process used data from nutrient testing results in the laboratory. Based on the results of tests on 693 data training and 297 data testing of soil images, test results are obtained accuracy of 90.5724% for Nitrogen, 92.9293% for Phosphorus, and 91.9192% for Potassium. These results indicate that image processing in soil images can be used as an alternative in identifying soil nutrient content.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77638607","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}
引用次数: 2
The Effects of Colchicine Concentration and Length of Immersion on Cutting Growth of Patchouli (Pogostemon cablin Benth) 秋水仙碱浓度和浸泡时间对广藿香扦插生长的影响
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009973001590164
Zuyasna, Andre, S. Hafsah
{"title":"The Effects of Colchicine Concentration and Length of Immersion on Cutting Growth of Patchouli (Pogostemon cablin Benth)","authors":"Zuyasna, Andre, S. Hafsah","doi":"10.5220/0009973001590164","DOIUrl":"https://doi.org/10.5220/0009973001590164","url":null,"abstract":": The aims of the study were to determine the concentration of colchicine and the best immersion length for the growth of patchouli cuttings. This study used a Randomized Block Design (RBD) 4 x 4 factorial pattern with 5 replications, the factors tested were: Colchicine concentration consisted of 4 levels (C0: Without Colchicine, C1: 0.25% Colchicine, C2: 0.50% Colchicine and C3: 0.75% Colchicine) and immersion length consists of 4 levels (R1: 2 hours, R2: 4 hours, R3: 6 hours, and R4: 8 hours). This research conducted in Sigli - Pidie Regency, Aceh-Indonesia from May to July 2016. The colchicine concentration affected the height, leaf area, and number of patchouli branches. Length of immersion give a different response. There was an interaction between the concentrations of colchicine and length of immersion in plant height, but there was no interaction on leaf area and number of patchouli branches.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75763495","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}
引用次数: 0
Esterification of Rhodinol Fraction with Acetic Anhydride using Zeolite Catalyst 沸石催化剂催化Rhodinol馏分与乙酸酐酯化反应
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009957901230126
Gadis Dian Anggreini, M. Cahayo, .. Masruri, .. Warsito
{"title":"Esterification of Rhodinol Fraction with Acetic Anhydride using Zeolite Catalyst","authors":"Gadis Dian Anggreini, M. Cahayo, .. Masruri, .. Warsito","doi":"10.5220/0009957901230126","DOIUrl":"https://doi.org/10.5220/0009957901230126","url":null,"abstract":"This research has been conducted on the effect of esterification reaction in the chemical composition of rhodinol fraction from java citronella oil (Cymbopogon winterianus). The reaction process in this research is done at 230 ° C by using rhodinol fraction and acetic anhydride with zeolite as a catalyst. Based on the research, the optimum reaction time is 1 hour and the optimum mole ratio of reactants is 1: 1. The% yield of citronellyl acetate and geranyl acetate are 74.06% and 95.92%.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84644901","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}
引用次数: 0
Effect of the Fractional Distillation on an Increment Patchouli Alcohol Content in Patchouli Oil 分级蒸馏对广藿香油中广藿香醇含量增加的影响
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009957100800085
Y. Aisyah, S. H. Anwar, Y. Annisa
{"title":"Effect of the Fractional Distillation on an Increment Patchouli Alcohol Content in Patchouli Oil","authors":"Y. Aisyah, S. H. Anwar, Y. Annisa","doi":"10.5220/0009957100800085","DOIUrl":"https://doi.org/10.5220/0009957100800085","url":null,"abstract":": Indonesia is one of the patchouli oil producers in the world, however, the problem is the quality of patchouli oil, especially patchouli alcohol content that are still below the required standard. One of the methods that can be used to increase the content of patchouli alcohol is fractional distillation method. This research aims to know the influence of the initial concentration of patchouli alcohol and height of column against increment of patchouli alcohol content in patchouli oil. The experimental design which used was Complete Randomized Design (CRD) consist of two factors, first factor namely the initial concentration of patchouli alcohol (C1 = 31,11%, C2 = 32,83%, and C3 = 33,61%) and second factor is height of column (H1 = 25 cm and H2 = 45 cm). Analysis of variance shows that the height of vigreux column has a real influence against the increased levels of patchouli alcohol. The highest levels of patchouli alcohol (83,86%) obtained from the residue fraction of distillation with 31.11 % initial concentration of patchouli alcohol and 45 cm height of column. The higher levels of patchouli alcohol in patchouli oil residue fraction, the higher specific gravity and the refractive index, and solubility in ethanol will be easier. The result shows that this sample have 1.013 specific gravity, clear in ethanol at 1:5 and have 1.5166 refractive index.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90105136","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}
引用次数: 2
Lactonization Castor Oil (Ricinus Communis) using Lipase B from Candida Antarctica Recombined Aspergillus oryzae as Bioflavor 利用南极假丝酵母重组米曲霉脂肪酶B作为生物香精乳酸化蓖麻油
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009955000370040
Galuh Alya Stywarni, E. Iftitah, A. Srihardyastutie
{"title":"Lactonization Castor Oil (Ricinus Communis) using Lipase B from Candida Antarctica Recombined Aspergillus oryzae as Bioflavor","authors":"Galuh Alya Stywarni, E. Iftitah, A. Srihardyastutie","doi":"10.5220/0009955000370040","DOIUrl":"https://doi.org/10.5220/0009955000370040","url":null,"abstract":"Lactone is a widely flavor that is used in food production. Lactonization using microbial or enzyme has natural labelled products, has a higher economic value than artificial products and is safe for the environment. Lactonization of castor oil (Ricinus communis) using lipase B from Candida antarctica recombined Aspergillus oryzae (T = room, 40oC) for 24, 48 and 72 h were investigated. The lactonization reaction was carried out using a magnetic hotplate stirrer with the reaction system consisting of castor oil, n-hexane solvent, Na2CO3 solution, and lipase biocatalyst. Lactonization castor oil products were analysed using GC-MS. At T = room, the major products were ester: methyl ricinoleate, 53.64% (t = 24 h) and other products were fatty acids and lactone. Lactone: γ-dodecalactone, 1.75% (t = 48 h) was a minor product. Whereas at T = 40oC, only produced ester, the major product was methyl ricinoleate, 81.33% (t = 72 h).","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79484158","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}
引用次数: 0
Effect of Essential Oil of Cedarwood (Cedrus Atlantica) against Serum Cortisol Levels in Rats Which Were Given Stressor 雪松精油对应激大鼠血清皮质醇水平的影响
Proceedings of the 2nd International Conference of Essential Oils Pub Date : 2019-01-01 DOI: 10.5220/0009954600180021
Jose Giovanny
{"title":"Effect of Essential Oil of Cedarwood (Cedrus Atlantica) against Serum Cortisol Levels in Rats Which Were Given Stressor","authors":"Jose Giovanny","doi":"10.5220/0009954600180021","DOIUrl":"https://doi.org/10.5220/0009954600180021","url":null,"abstract":": Stress is a response of the body to any demand that can affect the body’s endocrine system such as the release of cortisol into the bloodstream. Essential oils have been widely used for stress treatment because they have a calming effect. One of them is cedarwood essential oil. This study was conducted to determine the effect of cedarwood balm against serum cortisol levels in rats which were given stressor. In this study wistar male rats were randomly selected. This animal was exposed to forced swim test as stressor and then they were given cedarwood balm. We used 3 groups, the first group were given a daily forced swim test and applied cedarwood balm on the shaved back, the second group were given a daily forced swim test only, the third group were given nothing. Their serum cortisol levels were measured by ELISA test after 30 days. Result were analysed by Kruskal Wallis test for all group and man whitney test as a post test (p < 0,05). Serum cortisol level was significantly lower in cedarwood balm group then the other groups. When the all group were compared, serum cortisol level was significantly different (p = 0,018). In conclusion this indicates that cedarwood balm affect the endocrine regulatory mechanism to modulate stress responses.","PeriodicalId":20554,"journal":{"name":"Proceedings of the 2nd International Conference of Essential Oils","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86364123","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}
引用次数: 0
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信