Distillation Duration Research Articles

Study of Distillation Method and Time on the Quality of Basil (Ocimum sanctum L.) Essential Oil

"Basil" or basil has economic value both in fresh form, simplicia and essential oil. This research aims to evaluate the method and duration of distillation in making essential oil from basil. Two distillation methods, namely steam and boil distillation, are carried out with different distillation times (1 hour, 2 hours, and 3 hours). The parameters observed were physical characteristics which included oil volume, yield, pH, distillation rate, color, aroma and spots. The results show that the best distillation process time is 2 h for both distillation methods. Steam distillation for 2 hours produced the best essential oil of 1.1 ml, yield 0.11%, pH 5.78, distillation rate of 0.53 ml/h, pale yellow color, strong aroma, clean spots. Meanwhile, water boiled distillation for 2 h produced 1.2 ml of essential oil, 0.12% yield, pH 6.31, distillation rate of 0.60 ml/h, brown color, weak aroma, very spotty. Distillation of basil leaf essential oil using the steam method for 2 h was determined as the best treatment based on the highest essential oil yield, smallest pH, highest distillation rate, clearest color, most distinctive aroma, and cleanest stain. Keywords: Aroma, Basil leaves, Essential oil, Steam distillation, Yield.

ANALISIS SIFAT KIMIA TANAH DAN KANDUNGAN MINYAK SERAI WANGI (Cymbopogon winterianus Jowitt ) DISERTAI UJI HEDONIK YANG DIPRODUKSI OLEH KELOMPOK TANI KARYATANI DESA SIDORUKUN, KECAMATAN PANGKATAN, KABUPATEN LABUHANBATU

Fragrant lemongrass (Cymbopogon winterianus Jowitt) is one of the volatile oil-producing plants With high economic value, about 80% of citronella oil produced by Indonesia is exported to various countries. Citronella oil is multi-useful in the pharmaceutical industry and in the perfume industry as a fragrance in various perfumed oil products. This study aims to determine the chemical properties of the soil in the field of citronella farmer group, Sidorukun Village, to determine the citronellal content, oil content and specific gravity of citronella oil meet the requirements set out in the Indonesian National Standard (SNI). And the hedonic test to find out the community's response to citronella oil. This research was carried out from March 2021 to May 2021. The results of the analysis of chemical properties in 2 different locations showed that low soil chemical properties affected the growth and yield of citronella. The analysis of citronella oil showed that the citronella content, oil content and specific gravity of citronella oil (Cymbopogon winterianus Jowitt) produced by the Karyatani Farmers' Group in Sidorukun Village were 41.32%, 0.87% and 0.8881, respectively. This shows that the citronellal content of min 35%, oil content of 0.60% and specific gravity of 0.880-0.922 has met SNI 06-3953-1995, the duration of distillation is an important factor for the high yield of citronellal content, oil content and specific gravity. The hedonic test showed that the color of citronella oil was very liked by the panelists, as well as the smell of citronella oil, the panelists liked it and the taste of citronella oil when applied to the panelists' skin, they liked it and some thought it was normal.Key words: Essential Oils, Citronella, Soil Chemical Properties, Hedonic Test

Evaluation of harvesting time and standardization of distillation duration for higher essential oil content and quality in German chamomile (Chamomilla recutita L.)

Essential oil yield and composition in aromatic crops might be affected by genetic, agronomical and environmental factors but till date there is no clear information about the harvesting time and distillation for higher essential oil content without affecting quality. The current study was carried out to evaluate harvesting of chamomile flowers without herb and with herb part at three different times (6 A.M., 12 P.M. and 6 P.M.) and four distillation treatments (3 h, 4 h, 5 h & 6 h) for dried chamomile flowers. Results indicated that essential oil content was more in chamomile flowers without herb (0.15-0.18%) as compared to flowers with herb (0.06-0.09%). Essential oil content in chamomile flowers without herb was found statistically at par at harvest time of 12 P.M. (0.18%) and 6 P.M. (0.18%) and significantly higher than harvesting time of 6 A.M. (0.15%). Essential oil of chamomile flowers without herb contained maximum α-bisabolol oxide-B, (Z)-spiroether, and chamazulene at 12 P.M. and 6 P.M. while, α-bisabolone oxide-A and α-bisabolol oxide-A were maximum at 6 A.M. and (E)-β-farnesene was more at 12 P.M. Similarly, in distillation experiment, higher oil content was observed in chamomile dried flowers which were hydro-distilled for 6 h (1.20%) compared to other hydro-distillation durations. Marker compounds i.e. α-bisabolol oxide-A, α-bisabolone oxide-A, α-bisabolol oxide-B, (E)-β-farnesene and chamazulene were more at 5 h and 6 h distillation duration while (Z)-spiroether was more at 3 h distillation duration. The present study showed that in order to obtain higher essential oil, flowers without herb harvested at 12 P.M or 6 P.M. should be subjected to 5-6 h hydro-distillation.

PENGARUH KEPADATAN TERNA DAN LAMA PENYULINGAN TERHADAP RENDEMEN DAN KARAKTERISTIK MINYAK Melaleuca bracteata

<p><strong>The influence of material bulk density and duration of distillation on the yi eld and characteristic of Melaleuca bracteata oil</strong></p><p>Melaleuca bracteata belongs to Myrtaceae family which is grown wildly in Australia and Quensland. The oil is produced from Ihe leaves and (wigs by distillation and is used in fragrances industry. The oil content of leaves and twigs range between 0.4 to 1.0% with metil eugenol as the major component (70-80%). Because of its high metil eugenol content M. bracteata oil can be used to control fruil flies The experiment was carried out to evaluate the influence of material bulk density in the distillation vessel and duration of distillation on the yield and charac¬ teristic of the oil produced. Material used was (he leaves and twigs of M bracteata from the experimental garden of the Research Institute for Spice and Medicinal Crops. Manoko, Lembang (1200 in above the sea level). The experiment at 1993 was designed as completely randomized design, arranged factorially with three replications. The result showed that the optimum distillation condition was 1 56 g/l material bulk density in the vessel and 3 hours distillation. Such distillation condition produced 1.09 % oil yield with (he characteristics as follow speciic gravity I 0263, refractive index 1 5296, optical rotation -3.3°, solubility in 70% cthanol 1 : 1, methyl eugenol content 86.1%, acid number 0.56, ester number 15.4 and ester number after acetylation 39.3. Referring to Australia oil, the Indonesian M bracteata oil has higher value of esther number both before and after acetylation.</p>

Pengaruh Tempat Tumbuh dan Lama Penyulingan secara Hidrodestilasi terhadap Rendemen dan Profil Kandungan Kimia Minyak Atsiri Daun Kemangi (Ocimum canum Sims L.)

Kemangi ( Ocimum canum Sims L.) is one of the plants producing essential oils. Kemangi essential oil is taken from the stem and leaves. This study aims to determine the precentage of the yield of kemangi leaf oil and to identify the content of the chemical compounds of essential oils found in kemangi leaves based on the comparison of the place of growth and duration of distillation. Kemangi leaf samples were obtained from the Bontoala sub-district and from Tinggimoncong sub-district of South Sulawesi. The extraction method of essential oils of kemangi leaves is done by the method of distilation/hydrodestilation using three variations of distillation time, namely 6 hours, 12 hours and 18 hours. Based on the results of the study, it can be concluded that the kemangi leaf essential oil which has the highest yield is from Tinggimoncong sub-district of South Sulawesi, which is 3.325 % with distilation time for 18 hours, GC-MS identification results also show that kemangi leaves essential oil from Tinggimoncong sub-district of South Sulawesi has 93 components of chemical compounds with 5 main components, namely : 5-heptene-2-one, 6-methyl, 1,6-octadien-3-ol, 3,7-dimethyl, α-Terpeniol, 2,6-octadienal, 3,7-dimethy (E), eugenoland also has a component of minor compounds, namely: citral, lynalil acetate, eucalyptol, geraniol, verbenol, carveol, and trans-isoeugenol.

The influence of duration of the distillation of fresh and dried flowers on the essential oil composition of lavandin cultivated in Republic of Macedonia

The main objective of this study was to analyze the essential oil composition of cultivated lavandin (Lavandula x intermedia Emeric ex Loisel., Lamiaceae) from Republic of Macedonia and to evaluate the influence of the drying time of plant material and the distillation duration on the oil composition. Four different essential oils were obtained by hydrodistillation in a Clevenger type apparatus from freshly harvested and air dried flowers of lavandin and varying in distillation time (30 min and 2 h). Fifty-six compounds were identified by GC/ FID/MS representing 96.57% to 98.23% of the total oil. Prevailing constituents in all tested oils were linalool, borneol and terpinene-4-ol, present in amounts from 35.23 to 42.24%, 12.28 to 16.68% and 4.44 to 5.62%, respectively. The content of 1,8-cineole varied from 3.99% to 8.42% while that of camphor was between 5.96% and 7.04%. Linalyl acetate was present in amounts from 1.26% to 3.21%. Unexpectedly, the duration of distillation insignificantly influenced the essential oil composition. Few differences, mainly in the content of borneol (13.71% and 16.68% in the oil from fresh and dried flowers, respectively) were recorded in the essential oils obtained by 30 minutes distillation, while the content of the other constituents was almost unchanged. However, the isolated essential oils of lavandin did not comply with the international standards requirements for the lavandin essential oil composition.

Parameters influencing the yield and composition of the essential oil from Cretan Vitex agnus-castus fruits.

Mature and immature fruits of a Cretan Vitex agnus-castus L. population were chosen to investigate different parameters such as comminution, maturity, distillation period and extraction method influencing the essential oil yield and composition. The effect of the comminution and the maturity of the plant material showed highly significant differences in yield and composition of the essential oils obtained, as well as the distillation duration from one to five hours and the method applied (hydrodistillation and simultaneous distillation extraction). The variation of 36 essential oil components due to the parameters applied was studied. The results showed that many different essential oil qualities can be obtained from the same plant material according to the parameters employed in its extraction. Entire fruits hydrodistilled for one hour yielded an oil much richer in monoterpene hydrocarbons and oxygenated compounds whereas the best combination to obtain an oil rich in less volatile compounds is by SDE of comminuted fruits for five hours. For mature fruits the main components varied as follows due to the parameters studied: sabinene 16.4-44.1%, 1,8-cineole 8.4-15.2%, beta-caryophyllene 2.1-5.0%, and trans-beta-farnesene 5.0-11.7%.