scholarly journals Comparison of charantin extract from Momordica Charantia using modified supercritical carbon dioxide and soxhlet extraction method

2018 ◽  
Vol 14 (4) ◽  
pp. 462-466 ◽  
Author(s):  
Ahmad Syahmi Zaini ◽  
Noor Aiysah Aris ◽  
Nicky Rahmana Putra ◽  
Syafiza Abd Hashib ◽  
Mohd Johari Kamaruddin ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Conventional Method ◽  
Extraction Method ◽  
High Performance ◽  
Soxhlet Extraction ◽  
Momordica Charantia ◽  
Water Bath ◽  
Distilled Water ◽  
Purification Step ◽  
Promising Alternative

Charantin extract from Momordica Charantia fruits for anti-diabetic compound was proposed via Supercritical Fluid Extraction using carbon dioxide (SC-CO2) as solvent. This method is a promising alternative technique to a conventional Soxhlet and shaking water bath extraction method. Experiments were conducted to analyze the charantin i) with and without modifier (ethanol), ii) Soxhlet extraction with four types of solvent (distilled water, ethanol, dichloromethane, and petroleum ether) and iii) shaking water bath with distilled water as a solvent. A purification step was conducted post extraction to remove intrusive components such as chlorophylls and sugar from analyte in order to quantify charantin extract using high performance liquid chromatography (HPLC). The results show that, in 2.5 hours SC-CO2 with ethanol as modifier gives highest charantin yield with 0.7817 mg charantin per gram sample. In contrast, shaking water bath gives the highest charantin yield for conventional method with 0.712 mg charantin per gram sample during 6 hours of extraction. The result shows that by using SC-CO2 modified with ethanol can be a promising “green” extraction than conventional method.

scholarly journals Aplikasi Microwave Hydrodistillation pada Ekstraksi Biji Kapulaga

2020 ◽  
Vol 4 (2) ◽  
pp. 168
Author(s):  
Y. Tri Rahkadima ◽  
Anggun Fitria Laila Ningsih ◽  
Medya Ayunda Fitri
Keyword(s):  
Essential Oils ◽  
Conventional Method ◽  
Extraction Method ◽  
Soxhlet Extraction ◽  
Extraction Time ◽  
Alternative Methods ◽  
Distilled Water ◽  
Distillation Method ◽  
Extraction Processes ◽  
Conventional Extraction

Minyak Atsiri dari kapulaga memiliki banyak manfaat dibidang industri maupun kesehatan. Metode alternatif diperlukan untuk mengoptimalkan kualitas dan kuantitas minyak atsiri yang dihasilkan karena metode konvensional memiliki banyak kelemahan. Penelitian ini bertujuan untuk membandingkan hasil minyak atsiri dari proses ekstraksi konvensional menggunakan soxhlet dan ekstraksi microwave hydrodistilation . Penelitian dilakukan dengan menggunakan serbuk biji kapulaga seberat 40 gram yang telah dipisahkan dari bahan impuritiesnya . Pada metode ekstraksi Soxhlet , n-heksan digunakan sebagai pelarut, sementara itu pada metode ekstraksi Microwave Hydrodistilation menggunakan aquadest sebagai pelarutnya.  Hasil penelitian menunjukkan bahwa persen yield tertinggi diperoleh saat menggunakan metode ekstraksi soxhlet yaitu sebesar 3,608% dengan volume pelarut 250 ml , waktu ekstraksi 6 jam. Penggunaan aquades dalam metode microwave hydro-distilation tidak memberikan hasil yang maksimal jika dibandingkan metode konventional ekstraksi soxhlet dengan pelarut n-heksan.Essential oils from cardamom have many benefits in the field of industry and health. Alternative methods are needed to optimize the quality and quantity of essential oils produced because conventional methods have many disadvantages. This study aims to compare the results of essential oils from conventional extraction processes using Soxhlet and Microwave Hydrodistilation extraction. The study was conducted using cardamom seed powder weighing 40 grams which had been separated from the impurities. In the Soxhlet extraction method, n-hexane is used as a solvent, while in the Microwave Hydrodistilation extraction method uses aquadest as the solvent. The results showed that the highest percent yield was obtained when using the Soxhlet extraction method which was 3.608% with a volume of solvent of 250 ml, extraction time of 6 hours. The use of distilled water in the microwave hydro-distillation method does not give maximum results when compared to the conventional method of extracting Soxhlet with n-hexane solvent.

Rapid Screening of Oleuropein from Olive Leaves Using Matrix Solid-Phase Dispersion and High-Performance Liquid Chromatography

2014 ◽  
Vol 97 (4) ◽  
pp. 1109-1113 ◽  
Author(s):  
Marzieh Rashidipour ◽  
Rouhollah Heydari ◽  
Alireza Feizbakhsh ◽  
Payman Hashemi
Keyword(s):  
High Performance Liquid Chromatography ◽  
Extraction Method ◽  
High Performance ◽  
Solid Phase ◽  
Soxhlet Extraction ◽  
Rapid Screening ◽  
Olive Leaves ◽  
Matrix Solid Phase Dispersion ◽  
Sorbent Material ◽  
Phase Dispersion

Abstract Matrix solid-phase dispersion (MSPD) methodology as a quick and easy extraction method has been developed to extract oleuropein from Olea europaea leaves. This method has been compared with conventional maceration and Soxhlet extraction (SOXE) methods. Variables affecting MSPD, such as the sorbent material, the ratio of sample to sorbent material, elution solvent, and volume of the elution solvent, have been fully evaluated and optimized. Oleuropein was successfully extracted by silica sorbent with 350 μL of dichloromethane–methanol (70 + 30, v/v) as the elution solvent. The calibration curve showed good linearity (r2 = 0.9985) and precision (RSD <4.5%) in the concentration range of 0.5–100 μg/mL for oleuropein. The LOD and LOQ were 0.14 and 0.5 μg/mL, respectively. The recoveries were in the range of 88.0–94.0% with RSD values ranging from 6.0 to 9.8%. The extraction yields obtained by the MSPD method were comparable with those obtained by the maceration and SOXE methods. The reported MSPD extraction method was revealed to be eco-friendly, simpler, and faster than conventional methods used to quantify oleuropein in O. europaea leaves.

scholarly journals Separation of 6-Gingerol in Zingiber Officinale Rubrum Varieties Using an Ultrasonic Assisted Extraction Method

2021 ◽  
Vol 15 (2) ◽  
pp. 154
Author(s):  
Herliati Rahman ◽  
Satrio Nur Pambudi ◽  
Wahyu Endrunaka
Keyword(s):  
Extraction Method ◽  
High Performance ◽  
Soxhlet Extraction ◽  
Zingiber Officinale ◽  
Extraction Process ◽  
Frequency Effect ◽  
Ultrasonic Frequency ◽  
Ultrasonic Power ◽  
Ultrasonic Assisted ◽  
Red Ginger

Gingerol is a chemical compound found in red ginger, with pharmaceutical use as an analgesic drug. Generally, gingerol separation in ginger uses the Soxhlet extraction method, but this process has a weakness. It requires a long process and unsatisfactory yield. This research aims to study ultrasonic frequency effect on increasing gingerol yield in the extraction process. The variables studied were extraction times with variations of 30, 60, 90, and 120 minutes. In addition, the ultrasonic effect was also observed with variations in the ultrasonic frequency of 40 and 50 kHz compared to the solvent extraction method. This study used 70% (v/v) ethanol as a solvent and an operating temperature of 50 ºC as fixed variables.Furthermore, it used a rotary vacuum evaporator at a pressure of 350 mmHg to separate the resulting gingerol extract. Qualitative sample analysis used Thin Layer Chromatography (TLC) and scanning electron microscope (SEM) while quantitative analysis used high-performance liquid chromatography (HPLC), Waters Alliance e2695 brand with X-Terra RP18 column 100 x 4.6 mm, five μm to determine the total gingerol extract. The results showed that ultrasonic power had a significant effect on the results obtained, with the highest yield was 24.71% at the ultrasonic frequency of 50 kHz with an extraction time of 120 minutes.

Study on Determination of Grease Content Inner Leather by Ultrasonic-Combining-Soxhlet Extraction Method

2011 ◽  
Vol 393-395 ◽  
pp. 1456-1461
Author(s):  
Xiao Min Luo ◽  
Peng Ni Li ◽  
Guo Hui Zhao ◽  
Dong Qiu Wu
Keyword(s):  
Conventional Method ◽  
Extraction Method ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Dichloromethane Solution ◽  
Ultrasonic Technology ◽  
Before And After ◽  
Ultrasound Technology ◽  
Conventional Extraction

Different shaped samples of soaked leather in dichloromethane solution was pretreated by ultrasound technology, then the grease content in solution was measured by soxhlet extraction method. Samples before and after extraction were respectively made into histology slices in order to visually observe the situation of grease content. Results showed that compared with conventional extraction methods, extraction time was reduced to1/6~1/7 times and 50% solvent was saved by ultrasonic technology. Histology photos exhibited a cleaner extraction situation, which indicated that ultrasound technology behaved more efficient than conventional method in grease extraction.

Commodity Heating Medium and Mexican Fruit Fly Mortality

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 533e-533
Author(s):  
Krista C. Shellie
Keyword(s):  
Carbon Dioxide ◽  
Variable Temperature ◽  
Larval Mortality ◽  
Fruit Fly ◽  
Hot Water ◽  
Water Bath ◽  
Controlled Atmosphere ◽  
Mexican Fruit Fly ◽  
Temperature Water ◽  
Heating Medium

The objective of this research was to investigate whether the medium used to transfer heat to a commodity influenced the mortality of Mexican fruit fly larvae. A similar 2-h heat dose was delivered to grapefruit via immersion in a variable temperature water bath or via exposure to a rapidly circulating gas. The concentration of oxygen and carbon dioxide inside the grapefruit was analyzed at 30-min intervals and grapefruit center temperatures recorded every 60 s during heating. The mortality of larvae located inside grapefruit during heating in a controlled atmosphere or in hot water was significantly higher than that of larvae located inside grapefruit heated in air. The internal atmosphere of grapefruit heated in a controlled atmosphere or in hot water contained significantly higher levels of carbon dioxide and lower levels of oxygen than grapefruit heated in air. Larval mortality was compared after larvae were heated in media by rapidly circulating air or by an atmosphere containing 4 kPa of oxygen and 18 kPa of carbon dioxide to evaluate whether the altered atmosphere or a heat-induced fruit metabolite was responsible for enhanced mortality. The significantly higher mortality of larvae heated in media in the presence of an altered atmosphere suggested that the altered atmosphere enhanced larval mortality. Results from this research suggest that reducing oxygen and or increasing the level of carbon dioxide during heating can enhance mortality of the Mexican fruit fly and potentially reduce the heat dose required for quarantine security.

scholarly journals Optimization of Ultrasonic Cellulase-Assisted Extraction and Antioxidant Activity of Natural Polyphenols from Passion Fruit

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2494
Author(s):  
Wei Wang ◽  
Yu-Ting Gao ◽  
Ji-Wen Wei ◽  
Yin-Feng Chen ◽  
Qing-Lei Liu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Extraction Method ◽  
Ph Value ◽  
Soxhlet Extraction ◽  
Passion Fruit ◽  
Total Phenol Content ◽  
Extraction Temperature ◽  
Scavenging Activity ◽  
Solid Ratio ◽  
Dpph Scavenging

In this paper, ultrasonic cellulase extraction (UCE) was applied to extract polyphenols from passion fruit. The extraction conditions for total phenol content (TPC) and antioxidant activity were optimized using response surface methodology (RSM) coupled with a Box-Behnken design (BBD). The results showed that the liquid-to-solid ratio (X2) was the most significant single factor and had a positive effect on all responses. The ANOVA analysis indicated quadratic models fitted well as TPC with R2 = 0.903, DPPH scavenging activity with R2 = 0.979, and ABTS scavenging activity with R2 = 0.981. The optimal extraction parameters of passion fruit were as follows: pH value of 5 at 30 °C for extraction temperature, 50:1 (w/v) liquid-to-solid ratio with extraction time for 47 min, the experimental values were found matched with those predicted. Infrared spectroscopy suggested that the extract contained the structure of polyphenols. Furthermore, three main polyphenols were identified and quantified by HPLC. The results showed the content of phenolic compounds and antioxidant activity of the optimized UCE were 1.5~2 times higher than that determined by the single extraction method and the Soxhlet extraction method, which indicates UCE is a competitive and effective extraction technique for natural passion fruit polyphenols.

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