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1

Didar, Zohreh. "Comparative in vitro Study of the biological activity and chemical composition extracts of Helicteres isora L. obtained by water and subcritical water extraction." Food Quality and Safety 4, no. 2 (2019): 101–6. http://dx.doi.org/10.1093/fqsafe/fyz038.

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Abstract Objectives Subcritical water extraction technique is considered as an environmentally extraction technique. The aim of this study was to compare the different characteristics of water extract and subcritical water extract of Helicteres isora L. Materials and Methods Water extraction was performed under the following conditions: 25°C, 24 h, and solid-to-water ratio 1:30. Subcritical water extract was carried out under specific conditions (pressure = 10 bar, temperature = 160°C, solid-to-water ratio = 1: 30, time = 30 min). Chemical composition analysis was performed using GC–Mass chrom
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2

Yasuma, Taro, Masaaki Toda, Hajime Kobori, Naoto Tada, Corina N. D’Alessandro-Gabazza, and Esteban C. Gabazza. "Subcritical Water Extracts from Agaricus blazei Murrill’s Mycelium Inhibit the Expression of Immune Checkpoint Molecules and Axl Receptor." Journal of Fungi 7, no. 8 (2021): 590. http://dx.doi.org/10.3390/jof7080590.

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Agaricus blazei Murrill or Himematsutake is an edible and medicinal mushroom. Agaricus blazei Murrill’s fruiting body extracts have anticancer properties, although the mechanism is unknown. Basic or organic solvents, which are hazardous for human health, are generally used to prepare Agaricus blazei Murrill’s extracts. The inhibition of immune checkpoint molecules and Axl receptor is an effective therapy in cancer. This study assessed whether subcritical water extracts of the Agaricus blazei Murrill’s fruiting body or mycelium affect the expression of Axl and immune checkpoint molecules in lun
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3

Akbari, Saeed, Zohreh Didar, Mohsen Vazifedoost, Bahareh Hajirostamloo, and Mahnaz Mohtashami. "Antibiofilm Activity of Ginger (Zingiber officinale) Extracts In Vitro and Food Model." Journal of Food Processing and Preservation 2023 (March 29, 2023): 1–8. http://dx.doi.org/10.1155/2023/5134332.

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The present study aims at investigating the antibiofilm activity of two various ginger (Zingiber officinale) extracts in comparison to peracetic acid in broth culture and food model against pathogenic bacteria. The GC-MS analysis proved that the major components in the subcritical water extract of ginger were Zingerone (28.99%) and cis-6-shogaol (22.1%), while in the aqueous-ethanolic extract was Gingerol (28.404%) and Zingiberene (11.954%). According to the results, ginger subcritical water extract in a concentration of 50% (V/V) had the highest antibiofilm activity, and no significant differ
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Čolnik, Maja, Mihael Irgolič, Amra Perva, and Mojca Škerget. "The Conversion of Pistachio and Walnut Shell Waste into Valuable Components with Subcritical Water." Processes 12, no. 1 (2024): 195. http://dx.doi.org/10.3390/pr12010195.

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Pistachio and walnut shells accumulate in large quantities as waste during food processing and represent a promising lignocellulosic biomass for the extraction of valuable components. Subcritical water technology was used as an environmentally friendly technique to study the extraction of active ingredients and other valuable degradation products from walnut and pistachio waste. Subcritical water extraction (SWE) was carried out under different process conditions (temperature (150–300 °C) and short reaction times (15–60 min)) and compared with conventional extraction using different organic so
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5

Koyu, Halil. "CHOLINESTERASE AND TYROSINASE INHIBITORY ACTIVITY OF SUBCRITICAL WATER AND MICROWAVE EXTRACTS OF RAPHANUS SATIVUS L. ‘RED MEAT’ RADIX." Ankara Universitesi Eczacilik Fakultesi Dergisi 48, no. 3 (2024): 25. http://dx.doi.org/10.33483/jfpau.1484457.

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Objective: Cholinesterase and tyrosinase inhibitory activity potential of microwave-assisted and subcritical water extracts of Raphanus sativus L. Red Meat roots were investigated. Material and Method: Total phenol, flavonoid and anthocyanin content of extracts from conventional solvent and advanced extraction systems were spectrophotometrically quantified. Acetylcholinesterase, butyrylcholinesterase and tyrosinase inhibitory activities were investigated with the calculation of the rate of absorbance change with kinetic readings. Result and Discussion: The subcritical water extract was found t
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Baek, Seung-Wook, and Min-Jung Ko. "Extraction of Terpenes from Sage (Salvia officinalis L.)." Food Engineering Progress 28, no. 4 (2024): 308–15. https://doi.org/10.13050/foodengprog.2024.28.4.308.

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Sage (Salvia officinalis) contains various active compounds, including flavonoids and terpenes. In this study, the terpenes content, including camphor, borneol, and eucalyptol, was analyzed. Both subcritical water and conventional solvent extraction methods were used. Using subcritical water extraction, the optimal extraction conditions were determined based on temperature and time to selectively extract the desired components from the sage. These optimal extraction conditions were as follows: camphor (130°C for 5 min, 2.73±0.39 mg/g), borneol (130°C for 5 min, 0.72±0.07 mg/g), and eucalyptol
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7

Khizrieva, S. S., S. N. Borisenko, E. V. Maksimenko, and N. I. Borisenko. "Evaluation of different extraction techniques for the assay of anti - acetylcholinesterase activity of olive leaves (<i>Olea europaea</i>)." Chimica Techno Acta 8, no. 4 (2021): 20218403. http://dx.doi.org/10.15826/chimtech.2021.8.4.03.

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The total phenol content and the anti-acetylcholinesterase activity were compared in olive leaf (OL) extracts obtained using both subcritical water extraction (SbWE) and conventional solvent extraction (ethanol-water). The method proposed by Ellman (in vitro) was used to study the inhibitory activity of acetylcholinesterase (AChE). The total content of phenolic compounds and AChE activities of OL extracts varied depending on the used extraction method. Thus, the extract obtained using the subcritical water technique (220 °C) showed the highest amounts of total phenolic components, expressed as
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8

Kapalavavi, Brahmam, Ninad Doctor, Baohong Zhang, and Yu Yang. "Subcritical Water Extraction of Salvia miltiorrhiza." Molecules 26, no. 6 (2021): 1634. http://dx.doi.org/10.3390/molecules26061634.

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In this work, a green extraction technique, subcritical water extraction (SBWE), was employed to extract active pharmaceutical ingredients (APIs) from an important Chinese medicinal herb, Salvia miltiorrhiza (danshen), at various temperatures. The APIs included tanshinone I, tanshinone IIA, protocatechualdehyde, caffeic acid, and ferulic acid. Traditional herbal decoction (THD) of Salvia miltiorrhiza was also carried out for comparison purposes. Reproduction assay of herbal extracts obtained by both SBWE and THD were then conducted on Caenorhabditis elegans so that SBWE conditions could be opt
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Nazarova, D. V., Z. A. Temerdashev, E. A. Vinitskaya, N. V. Kiseleva, and M. V. Nagalevskii. "Comparative Analysis of Chemical Compositions of Mentha L. Plant Extracts by Gas Chromatography–Mass Spectrometry after Hydrodistillation and Subcritical Extraction." Журнал аналитической химии 78, no. 9 (2023): 837–47. http://dx.doi.org/10.31857/s0044450223090098.

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The results of a study of the composition of essential oil and extracts obtained by hydrodistillation and subcritical extraction from plants of the genus Mentha L. are presented. The test samples were peppermint (Mentha piperita L.) and horsemint (Mentha longifolia L.). Gas chromatography–mass spectrometry was used to identify and compare the component composition of essential oils and extracts from Mentha L. plants. The composition of the essential oil of horsemint differs from the essential oil of peppermint by the high concentration of linalool and the absence of pulegone and piperitone. Th
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10

Na, Hwan Sik, Jin Young Kim, Jong Soo Park, et al. "Characteristics of marine algae extracts using subcritical water extract method." Korean Journal of Food Preservation 21, no. 1 (2014): 62–68. http://dx.doi.org/10.11002/kjfp.2014.21.1.62.

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11

Wahyudiono, Wahyudiono, Shinya Maeda, Siti Machmudah, Kei Sato, Hideki Kanda, and Motonobu Goto. "EXTRACTION OF PROCYANIDIN B2 FROM APPLE PEEL USING SUBCRITICAL WATER." ASEAN Engineering Journal 12, no. 2 (2022): 135–41. http://dx.doi.org/10.11113/aej.v12.17165.

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Subcritical water, which is an effective solvent for polar and nonpolar substances, has been used to extract numerous natural ingredients. In this study, subcritical water was used to extract bioactive substances from apple peel in a batch process in the temperature range of 100–175 °C for 5–60 min. The Fourier-transform infrared spectroscopy results revealed that phenolic compounds were released from apple peel in the aforementioned temperature range. The ultraviolet–visible spectra of the liquid products at 280 nm revealed the high content of phenolic compounds in the extracts. The high-perf
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12

Zullaikah, Siti, Maria Christy P. Jessinia, Rinaldi, Medina Yasmin, M. Rachimoellah, and Da Wei Wu. "Lipids Extraction from Wet and Unbroken Microalgae Chlorella vulgaris Using Subcritical Water." Materials Science Forum 964 (July 2019): 103–8. http://dx.doi.org/10.4028/www.scientific.net/msf.964.103.

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Lipids extraction from wet and unbroken microalgae (Chlorella vulgaris) using subcritical water with aid of co-solvents has been investigated. Lipids extraction from wet and unbroken microalgae has a crucial role in order to eliminate dewatering and drying steps. Subcritical water is able to extract lipids from feedstock with high water content. This work was conducted to study several factors affecting in subcritical water extraction (SWE) from wet and unbroken microalgae. In this study, effect of co-solvent types (without co-solvent, chloroform, methanol, ethanol, ethyl acetate, and n-hexane
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13

Çalhan, Selda Doğan, Bahar Meryemoğlu, Pelin Eroğlu, Barış Saçlı, and Dimitrios Kalderis. "Subcritical Water Extraction of Onosma mutabilis: Process Optimization and Chemical Profile of the Extracts." Molecules 28, no. 5 (2023): 2314. http://dx.doi.org/10.3390/molecules28052314.

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The aboveground and root parts of Onosma mutabilis were extracted using subcritical water and the process was optimized with response surface methodology. The composition of the extracts was determined by chromatographic methods and compared to that of conventional maceration of the plant. The optimum total phenolic contents for the aboveground part and the roots were 193.9 and 174.4 μg/g, respectively. These results were achieved at a subcritical water temperature of 150 °C, an extraction time of 180 min, and a water/plant ratio of 0.1, for both parts of the plant. Principal component analysi
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14

SUKMANOV, Valeriy, and Olena KOVALCHUK. "INFLUENCE OF SUBCCRITICAL WATER EXTRACTION PARAMETERS ON THE EFFICIENCY OF PROTEIN RECOVERY FROM SOYBEAN MEAL." Herald of Khmelnytskyi National University. Technical sciences 311, no. 4 (2022): 256–64. http://dx.doi.org/10.31891/2307-5732-2022-311-4-256-264.

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This work is devoted to the study of the extraction process of protein from soybean meal with subcritical water. The aim of the study is to determine the influence of parameters (temperature: , extraction duration: ( ), hydromodulus: ) of the subcritical water extraction process on the protein content in the dry matter of soybean meal extract and their rational values. To determine the rational parameters of the extraction process, an empirical research method was applied using an orthogonal compositional plan of the 2-nd order for a fractional-factorial experiment . Samples of extracts were o
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15

Qin, Chun Xi, Cheng Lin, Jie Tang, Zhen Hao Xi, and Ling Zhao. "Subcritical water hydrolysis of nylon 6 extract concentrate." Canadian Journal of Chemical Engineering 96, no. 3 (2017): 739–48. http://dx.doi.org/10.1002/cjce.22966.

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16

Tsai, Menghsuan, Li Zhu, Shinya Maeda, et al. "Extraction of Phytochemicals from Maypole Apple by Subcritical Water." Foods 11, no. 21 (2022): 3453. http://dx.doi.org/10.3390/foods11213453.

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The Maypole apple is a new, promising species of small apples with a prominent flavor and deep red flesh and peel. This study divided Maypole apples into outer flesh, inner flesh, and peel, and used subcritical water at 100–175 °C for 10–30 min to extract various phytochemicals (procyanidin B2 (PB2), 5-caffeoylquinic acid (5CQA), and epicatechin). The obtained Maypole apple extracts and extraction residues in this work were analyzed using a SEM, HPLC, FT-IR, and UV-Vis spectrophotometer. Under different subcritical water extraction conditions, this work found the highest extraction rate: to be
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17

Steglińska, Aleksandra, Anastasiia Bekhter, Paweł Wawrzyniak, et al. "Antimicrobial Activities of Plant Extracts against Solanum tuberosum L. Phytopathogens." Molecules 27, no. 5 (2022): 1579. http://dx.doi.org/10.3390/molecules27051579.

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The purpose of the study was to select an environmentally friendly plant biopesticide to protect seed potatoes against phytopathogens. The scope included the evaluation of the antimicrobial activities of 22 plant water extracts, 22 water-glycol extracts, and 3 subcritical carbon dioxide extracts using the agar diffusion method against 10 potato phytopathogens. For the most effective extracts, minimal inhibitory concentration (MIC), chemical composition analysis by gas chromatography–mass spectrometry and in situ assays on seed potatoes were performed. Garlic water extract was finally selected
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18

Frida Susanti, Ratna, Kevin Kurnia, Amadea Vania, and Ignatius Jeremy Reynaldo. "Total Phenol, Flavanoid and Antioxidant Activity of Physalis angulata Leaves Extract by Subcritical Water Extraction." Modern Applied Science 9, no. 7 (2015): 190. http://dx.doi.org/10.5539/mas.v9n7p190.

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Physalis angulata, having familiar name in Indonesia as “Ceplukan”, is wellknown empirically in folk medicineto treat several diseases such as hepatitis, malaria, boil, liver problem, diuretic etc. Clinically several researchershave revealed the activity of Physalis angulata extract as anticancer, antitumor, antimycobacterial,immunosuppresion etc. So far, the common method to obtain Physalis angulata extract is by hot waterextraction (HWE) and maceration using organic solvent such as methanol or ethanol. Meanwhile, strickerregulation of organic solvent residue to the pharmaceutical product enc
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Žagar, Tjaša, Rok Frlan, and Nina Kočevar Glavač. "Using Subcritical Water to Obtain Polyphenol-Rich Extracts with Antimicrobial Properties." Antibiotics 13, no. 4 (2024): 334. http://dx.doi.org/10.3390/antibiotics13040334.

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The use of green extraction methods that meet the criteria of sustainable and environmentally friendly technologies has been increasing in recent decades due to their many benefits. In this respect, extracts obtained using subcritical water are also gaining increased attention because of their potential antioxidant and antimicrobial properties. Their antimicrobial activity is mainly due to the presence of various polyphenolic compounds. Although the exact mechanism of the antibacterial action of polyphenolic compounds has not yet been fully investigated and described, polyphenols are known to
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20

Yulianto, Mohamad Endy, Susiana Purwanitisari, Indah Hartanti, Qurrotun Ayun Khoirun Nisa, and Retno Dwi Nyamiati. "Subcritical reactive extraction of shogaol and gingerol: Effect of time and temperature." International Food Research Journal 29, no. 4 (2022): 857–63. http://dx.doi.org/10.47836/ifrj.29.4.12.

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Gingerol and shogaol are two bioactive compounds of ginger which exhibit several positive effects on human health. The conventional method for shogaol preparation is considered ineffective because it causes losses to the environmental system, and the efficiency of the process is low. Reactive extraction with subcritical water is a method that is considered environmentally friendly for the separation of slightly polar components without using organic solvents. The advantage of the reactive extraction process with subcritical water is that it does not require a catalyst because the process is ab
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Tikhomirova, Lyudmila Ivanovna, Natal'ja Grigor'evna Bazarnova, and Tat'yana Nikolayevna Ilicheva. "FEATURES EXTRACTS FROM BIOTECHNOLOGICAL PLANT MATERIALS IN CONNECTION WITH THE EXTRAC-TION IN SUBCRITICAL CONDITIONS AND THE DIRECTED BIOSYNTHESIS OF SECONDARY METABOLITES." chemistry of plant raw material, no. 3 (April 7, 2019): 241–52. http://dx.doi.org/10.14258/jcprm.2019035047.

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The technique of obtaining extracts in subcritical conditions requires less time and material costs, the process is more environmentally friendly, and the resulting extract has a sufficiently high quality and does not contain toxic impurities.&#x0D; As a result of laboratory studies, extracts from biotechnological raw materials Potentilla longifolia, Potentilla chrisantha, Potentilla fruticosa, and Iris sibirica, extracted by water and ethyl alcohol in traditional and subcritical conditions. The amount of extractive substances in the sub-critical conditions was 1.3 times more extracted by wate
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Cravotto, Christian, Giorgio Grillo, Arianna Binello, et al. "Bioactive Antioxidant Compounds from Chestnut Peels through Semi-Industrial Subcritical Water Extraction." Antioxidants 11, no. 5 (2022): 988. http://dx.doi.org/10.3390/antiox11050988.

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Chestnut peels are a poorly characterized, underexploited by-product of the agri-food industry. This raw material is rich in bioactive compounds, primarily polyphenols and tannins, that can be extracted using different green technologies. Scaling up the process for industrial production is a fundamental step for the valorization of the extract. In this study, subcritical water extraction was investigated to maximize the extraction yield and polyphenol content. Lab-scale procedures have been scaled up to the semi-industrial level as well as the downstream processes, namely, concentration and sp
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TANGKHAVANICH, Boonnakhom, Takashi KOBAYASHI, and Shuji ADACHI. "Properties of Rice Straw Extract after Subcritical Water Treatment." Bioscience, Biotechnology, and Biochemistry 76, no. 6 (2012): 1146–49. http://dx.doi.org/10.1271/bbb.110983.

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Rahmah, Nur Lailatul, Siti Mazlina Mustapa Kamal, Alifdalino Sulaiman, Farah Saleena Taip, and Shamsul Izhar Siajam. "Kinetic Study of Total Phenolic Content from Piper betle Linn. Leaves Extract Using Subcritical Water." Sains Malaysiana 52, no. 6 (2023): 1737–47. http://dx.doi.org/10.17576/jsm-2023-5206-10.

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The green plant-based extraction of phenolic compounds is still challenging and attractive due to their benefit. The mechanism controlling of desorption rate of phenolic compounds, measured as total phenolic content (TPC), from Piper betle Linn. (PBL) leaves using subcritical water, and a one-site kinetic desorption model (first order) was studied. One-site kinetic desorption model has well explained the extraction mechanism of phenolic compounds from PBL leaves using subcritical water through desorption and diffusion mechanism. This model fits with the experimental data and presents a good de
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Švarc-Gajić, Jaroslava, Simone Morais, Cristina Delerue-Matos, Elsa F. Vieira, and Giorgia Spigno. "Valorization Potential of Oilseed Cakes by Subcritical Water Extraction." Applied Sciences 10, no. 24 (2020): 8815. http://dx.doi.org/10.3390/app10248815.

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The oil industry generates great quantities of oilseed cakes that remain after oil extraction. New technologies are required for their valorization, owing to their high nutritional value. Pumpkin, flax and hemp seed cakes were extracted by subcritical water under different conditions that included different gas atmospheres and homogenous catalysis, and for the first time their properties were directly compared. Extracts obtained in a nitrogen atmosphere, nitrogen atmosphere with the addition of a catalyst, and carbon dioxide atmosphere were chemically and nutritionally characterised. In the aq
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Akgollu, Ersin, Ahmet Umay, Murat Turk, and Ramazan Bilgin. "Chemical composition of subcritical water extraction extract of Tribulus Terrestris." French-Ukrainian Journal of Chemistry 6, no. 2 (2018): 54–58. http://dx.doi.org/10.17721/fujcv6i2p54-58.

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Subcritical water extraction of Tribulus terrestris leaves and fruits was performed at 100 ºC and 60 atm for 30 min. Chemical composition of volatile extracts was investigated. A simple lactone compound Loliolide (23,82%) was main components associated with 26 identified molecules which are mostly oxygenated compounds.
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Yan, Linlin, Yungang Cao, and Guangyao Zheng. "Optimization of subcritical water extraction of phenolic antioxidants from pomegranate (Punica granatum L.) peel by response surface methodology." Analytical Methods 9, no. 32 (2017): 4647–56. http://dx.doi.org/10.1039/c7ay01475a.

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Vladić, Jelena, Martina Jakovljević, Maja Molnar, et al. "Valorization of Yarrow (Achillea millefolium L.) By-Product through Application of Subcritical Water Extraction." Molecules 25, no. 8 (2020): 1878. http://dx.doi.org/10.3390/molecules25081878.

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In the present study, valorization of yarrow (Achillea millefolium) by-product from the filter tea industry was investigated through the application of subcritical water for the extraction of bioactive compounds. The influence of different process parameters (temperature 120–200 °C, extraction time 10–30 min, and HCl concentration in extraction solvent 0–1.5%) on extract quality in terms of content of bioactive compounds and antioxidant activity was investigated. Optimal conditions of the extraction process (temperature 198 °C, extraction time 16.5 min, and without acidifer) were determined an
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Krishnamoorthy, Rambabu, Abdul Hai, and Fawzi Banat. "Subcritical Water Extraction of Mango Seed Kernels and Its Application for Cow Ghee Preservation." Processes 11, no. 5 (2023): 1379. http://dx.doi.org/10.3390/pr11051379.

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Mango seed kernel (MSK) extract contains phytochemicals, bioactives, and fatty acids that are of interest to food and nutritional scientists. The subcritical water extraction process (SCWE) can be effective in extracting valuable bioactives from MSK. In this study, SCWE was investigated and optimized for the extraction of bioactives from MSK using Box–Behnken experimental design. The extract yield was examined as a function of various process variables, namely, solvent-to-feed (L/S) ratio, extraction temperature (T), and extraction time (t). Analysis of variance (ANOVA) for experimental result
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Kawabata, Tomoaki, Yoshie Tanaka, Asako Horinishi, et al. "Subcritical Methanol Extraction of the Stone of Japanese Apricot Prunus mume Sieb. et Zucc." Biomolecules 10, no. 7 (2020): 1047. http://dx.doi.org/10.3390/biom10071047.

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The pits of Japanese apricot, Prunus mume Sieb. et Zucc., which are composed of stones, husks, kernels, and seeds, are unused by-products of the processing industry in Japan. The processing of Japanese apricot fruits generates huge amounts of waste pits, which are disposed of in landfills or, to a lesser extent, burned to form charcoal. Mume stones mainly consist of cellulose, hemicellulose, and lignin. Herein, we attempted to solubilize the wood-like carapace (stone) encasing the pit by subcritical fluid extraction with the aim of extracting useful chemicals. The characteristics of the main p
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Wiboonsirikul, Jintana, Masayuki Mori, Pramote Khuwijitjaru, and Shuji Adachi. "Properties of Extract from Okara by Its Subcritical Water Treatment." International Journal of Food Properties 16, no. 5 (2013): 974–82. http://dx.doi.org/10.1080/10942912.2011.573119.

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Zhou, Nuo-Xin, Zhu-Qi Liu, Meng-Han Zhu, et al. "Selective Extraction of Aromatics from Slurry Oil with Subcritical Water." Molecules 30, no. 9 (2025): 2079. https://doi.org/10.3390/molecules30092079.

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The selective separation of aromatics from slurry oil (SLO)—a low-value byproduct of fluid catalytic cracking—remains a major industrial challenge. This study investigates the use of subcritical water (Sub-CW) as a green and tunable solvent to extract aromatics from SLO in a semi-batch system operating at 250–325 °C. At 325 °C and a water-to-oil mass ratio of 6:1, the extract yield reaches 16 wt%, with aromatic hydrocarbons accounting for over 90 wt% of the extract, predominantly composed of 3- to 4-ring polycyclic aromatic hydrocarbons. Comprehensive characterization via simulated distillatio
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Khurun Hizar, Sarah Aisyah, Ceron Ezra Yangun, Noor Sabariah Mahat, et al. "Comparative Analysis of Supercritical Carbon Dioxide and Subcritical Water Extraction for Sabah Coffea Canephora." Journal of Engineering and Sustainable Development 29, no. 1 (2025): 8–14. https://doi.org/10.31272/jeasd.2728.

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This work provides a thorough comparative analysis of the green extraction process, viz. supercritical carbon dioxide and subcritical water extraction methods for Sabah Coffea canephora. Rigorous experiments were conducted using supercritical carbon dioxide (temperature ranging from 40 °C to 80 °C and pressure from 10 to 30 MPa) and subcritical water (temperature ranging from 120 to 180 °C with extraction times from 5 to 15 min). The optimum conditions for supercritical carbon dioxide extraction were obtained at 79 °C and 30 MPa at the maximum extract yield (8.549%), total phenolic content (4.
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Setyorini, Dwi, Ridlo Aanisah, Siti Machmudah, et al. "Extraction of Phytochemical Compounds from Eucheuma cottonii and Gracilaria sp using Supercritical CO2 Followed by Subcritical Water." MATEC Web of Conferences 156 (2018): 03051. http://dx.doi.org/10.1051/matecconf/201815603051.

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Extraction of phytochemical compounds (such as β-carotene, linoleic acids, carrageenan, and polyphenols) from algae Eucheuma cottonii and Gracilaria sp with supercritical CO2 followed by subcritical water has been investigated. Supercritical CO2 extraction was carried out at pressure of 25 MPa, temperature of 60°C, CO2 flowrate of 15 ml/min, and ethanol flowrate of 0.25 ml/min. To determine the content of carotenoids and linoleic acids, the extracted compounds were analyzed using a spectrophotometer UV-Vis. The residue of algae starting material was subsequently extracted by subcritical water
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Dorosh, Olena, Manuela M. Moreira, Diana Pinto, et al. "Evaluation of the Extraction Temperature Influence on Polyphenolic Profiles of Vine-Canes (Vitis vinifera) Subcritical Water Extracts." Foods 9, no. 7 (2020): 872. http://dx.doi.org/10.3390/foods9070872.

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This work focused on evaluating the possibility of using vineyard pruning wastes from two Portuguese Vitis vinifera varieties; Touriga Nacional (TN) and Tinta Roriz (TR), as new potential ingredients for the nutraceutical industry. An environmentally friendly extraction technique; namely subcritical-water extraction (SWE), was employed. The overall results indicate that phenolic acids were the major class of compounds quantified; being gallic acid the principal one. The highest value for total phenolic content (TPC) was obtained for the TR extract at 250 °C (181 ± 12 mg GAE/g dw). In terms of
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Melgosa, Rodrigo, Marta Marques, Alexandre Paiva, et al. "Subcritical Water Extraction and Hydrolysis of Cod (Gadus morhua) Frames to Produce Bioactive Protein Extracts." Foods 10, no. 6 (2021): 1222. http://dx.doi.org/10.3390/foods10061222.

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The valorization of Atlantic cod (Gadus morhua) frames from a filleting industry was investigated using subcritical water extraction and hydrolysis (SBW) at different temperatures (90, 140, 190 and 250 °C) and 100 bar to obtain extracts rich in proteins, peptides and amino acids. Up to 57.7 g of extract per 100 g of codfish frames were obtained, with nearly total recovery of the protein fraction. At each temperature, protein extracts of decreasing molecular weight were obtained, according to SEC-GPC results. Most of the protein present in the raw material and extracts was collagen and collagen
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37

M., Endy Yulianto, and Fadia Haya Aghnisni. "Gingerol and Shogaol Nanoemulsion of Ginger Extract-based Subcritical Water Extraction." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 06, no. 02 (2023): 653–61. https://doi.org/10.5281/zenodo.7648747.

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The aim of the present study was determine optimum processing conditions and nanoemulsion formulation for the preparation of gingerol and shogaol nanoemulsion from ginger extract-based subcritical water. For this purpose, nanoemulsions were prepared with rotor-stator homogenizer and varied surfactant and cosurfactant concentrations (24%, 26% and 28% v/v), and stirring speed (22,000 rpm, 24,000 rpm). The stirring time is adjusted to 30 minutes. The density, viscosity, pH, % transmittance, nanoemulsion type test, centrifugation test, particle size, zeta potential, and polydispersion index was ob
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Park, Jin-Seok, Ji-Min Han, Sin-Won Park, et al. "Subcritical Water Extraction of Undaria pinnatifida: Comparative Study of the Chemical Properties and Biological Activities across Different Parts." Marine Drugs 22, no. 8 (2024): 344. http://dx.doi.org/10.3390/md22080344.

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The subcritical water extraction of Undaria pinnatifida (blade, sporophyll, and root) was evaluated to determine its chemical properties and biological activities. The extraction was conducted at 180 °C and 3 MPa. Root extracts exhibited the highest phenolic content (43.32 ± 0.19 mg phloroglucinol/g) and flavonoid content (31.54 ± 1.63 mg quercetin/g). Sporophyll extracts had the highest total sugar, reducing sugar, and protein content, with 97.35 ± 4.23 mg glucose/g, 56.44 ± 3.10 mg glucose/g, and 84.93 ± 2.82 mg bovine serum albumin (BSA)/g, respectively. The sporophyll contained the highest
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Zabidi, Nur Athirah, Nur Akmal Ishak, Muhajir Hamid, and Siti Efliza Ashari. "Subcritical Water Extraction of Antioxidants from Curculigo latifolia Root." Journal of Chemistry 2019 (September 18, 2019): 1–10. http://dx.doi.org/10.1155/2019/8047191.

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This study aims to extract antioxidant compounds from Curculigo latifolia root by subcritical water extraction (SWE). The influence of extraction temperature and time on the antioxidant activity of C. latifolia root extract was investigated in terms of extraction yield, total phenolic content (TPC), total flavonoid content (TFC), 2, 2′-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS), and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical. The highest extraction yield (36.5%), TPC (92.55 mg GAE/g), TFC (13.26 mg RE/g), and antioxidant activities by ABTS (66.8 mg trolox equivalent/g sample) a
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Sakipova, Zuriyadda, Thais Biondino Sardella Giorno, Tolkyn Bekezhanova, et al. "Pharmacological Evaluation of Artemisia cina Crude CO2 Subcritical Extract after the Removal of Santonin by Means of High Speed Countercurrent Chromatography." Molecules 25, no. 12 (2020): 2728. http://dx.doi.org/10.3390/molecules25122728.

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Artemisia species are highly important due to their economic significance as medicines, fodder and food. Artemisia cina is an endemic species to Kazakhstan. In folk medicine, water extract of A. cina was used in the treatment of bronchial asthma while the alcohol extract has larvicidal and antituberculosis activity. The most common and most extensively studied compound from this species is the terpenoid santonin. The toxicity of this compound occurs at the doses of 60 mg for children and 200 mg for adults causing among other issues xanthopsia, leading to blindness. Having this in mind, the mai
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Čolnik, Maja, Mihael Irgolič, Amra Perva, and Mojca Škerget. "Hydrolytic Decomposition of Corncobs to Sugars and Derivatives Using Subcritical Water." Processes 13, no. 1 (2025): 267. https://doi.org/10.3390/pr13010267.

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Corncobs are a widespread and renewable by-product of corn cultivation that are typically considered waste or low-value material. Corncobs contain hemicellulose, cellulose, and lignin, which can be converted into valuable products using suitable techniques. Subcritical water is increasingly used as a green medium for the extraction of valuable components from biomass, as it has many advantageous properties (high yield, pure extracts, shorter times) compared to other organic solvents. For this reason, subcritical water was used in this study to extract valuable components from corncobs at diffe
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Breniaux, Marion, Benjamin Poulain, Sandra Mariño-Cortegoso, Letricia Barbosa-Pereira, Claudia Nioi, and Rémy Ghidossi. "Valorization of Grape Seed By-Products Using Subcritical Water Extraction: A Sustainable Approach for Bioactive Compound Recovery." Processes 13, no. 6 (2025): 1788. https://doi.org/10.3390/pr13061788.

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Grape seeds are a major by-product of the winemaking industry and a great source of bioactive compounds such as polyphenols and proteins. These compounds have a wide range of applications including those in nutraceutical products and cosmetics and within the wine industry itself. Subcritical water extraction (SWE) was explored as a global method to valorize grape seed by-products for their different bioactive compounds in the context of waste valorization, green chemistry (solvent-free extraction), and circular economy. A Box–Behnken design was applied to generate mathematical responses and th
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Atanasova, Ana, Ani Petrova, Desislava Teneva, et al. "Subcritical Water Extraction of Rosmarinic Acid from Lemon Balm (Melissa officinalis L.) and Its Effect on Plant Cell Wall Constituents." Antioxidants 12, no. 4 (2023): 888. http://dx.doi.org/10.3390/antiox12040888.

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Rosmarinic acid (RA), an ester of caffeic acid and 3,4-dihydroxyphenyllactic acid, is a potent radical scavenger, a chelator of prooxidant ions, and an inhibitor of lipid peroxidation. RA-containing extracts are widely used natural antioxidants in food products, and many herbal preparations and food supplements, containing RA, are marketed with claims of beneficial health effects. The current study investigated the effectiveness of subcritical water extraction (SWE) for the recovery of RA from lemon balm (Melissa officinalis), as a “green” alternative to conventional hydro-alcoholic extraction
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Mariam Firdhaus Mad Nordin, Nurin Zulaikha Zulfadhly, Norrashidah Mokhtar, et al. "Comparison of Chemical Composition and Antioxidant Activity of Extracted Zingiberaceae Rhizome using Subcritical Water Extraction." Journal of Research in Nanoscience and Nanotechnology 8, no. 1 (2023): 13–22. http://dx.doi.org/10.37934/jrnn.8.1.1322.

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In Malaysia, many local herbs can take advantage of their benefit for health products, cosmetics, and food production. In this research, fresh Zingiberacea rhizomes including Curcuma Longa, Curcuma Zedoaria, Curcuma Xanthorrhiza, Zingiber Officinale, and Zingiber Zerumbet rhizomes were extracted using the subcritical water extraction (SWE) unit located at AM Zaideen Ventures Sdn Bhd in Kuala Lumpur (Malaysia). The focus of this research is to analyze the freeze-dried powder extracts from the fresh Zingiberaceae rhizome for the phytochemical screening and bioactive compounds. Operating paramete
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Yang, Zheng, Brandon Uhler, and Tristan Lipkie. "Microwave-Assisted Subcritical Water Extraction of Steviol Glycosides From Stevia rebaudiana Leaves." Natural Product Communications 14, no. 6 (2019): 1934578X1986000. http://dx.doi.org/10.1177/1934578x19860003.

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A rapid method that combines microwave heating and subcritical water extraction to extract steviol glycosides from Stevia rebaudiana (Bertoni) or stevia leaves was developed and compared to conventional thermal solvent extraction methods. Within only 1 minute after subcritical water condition at 140°C being reached, the yields of major steviol glycoside, rebaudioside A and stevioside, and less polar steviol glucoside, rebaudioside C, from stevia leaves were comparable to conventional extraction method that used 70% ethanol under sonication for 45 minutes. This new hybrid extraction technique m
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Sukmanov, Valeriy, and Olena Kovalchuk. "The Influence of the Parameters of the Subcritical Water Extraction Process on the Efficiency of Isoflavones Elicitation from Soy Meal." Restaurant and hotel consulting. Innovations 4, no. 2 (2021): 299–315. http://dx.doi.org/10.31866/2616-7468.4.2.2021.249092.

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Topicality. Incidental products of soy processing (okara, meal, millcake) contain a large amount of protein, and, additionally, other valuable biologically active substances. Among them, isoflavones are of particular researchers’ interest. Subcritical water extraction is a promising method for elicitation biologically active substances from plant raw material. However, such a method of extracting isoflavones, and its rational parameters for soy meal, remain insufficiently investigated. Aim and methods. The aim of this work is to study the influence of parameters (temperature: 120...160°С, dura
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ПАВЛОВА Л., В., А. ПЛАТОНОВ И., and А. ПУШКАРЕВ Г. "SUBCRITICAL WATER EXTRACTS OF LAMINARIYA JAPANESE AS A POTENTIAL BASIS FOR FUNCTIONAL NUTRITION." Сверхкритические Флюиды: Теория и Практика 18, no. 3(3) (2023): 29–38. http://dx.doi.org/10.34984/scftp.2023.18.3.003.

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Проведена оценка эффективности извлечения иода и альгиновых кислот из сухих слоевищ ламинарии японской (Saccharina japonica) субкритической водой при 130, 150 и 170 °С в режиме динамической экстракции. Установлено, что в ходе экстракции происходит полное извлечение иода из слоевищ ламинарии японской, однако в режиме динамической экстракции только около 45 % иодсодержащих соединений переходят в экстракт, остальная часть остается в слизи, формирующейся вокруг частиц ламинарии в ходе экстракции. Полученные экстракты ламинарии японской содержат жирные и фенольные кислоты, спирты, углеводы. Мармела
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Thiruvenkadam, Selvakumar, Shamsul Izhar, Yoshida Hiroyuki, and Razif Harun. "Subcritical Water Extraction of Chlorella pyrenoidosa: Optimization through Response Surface Methodology." BioMed Research International 2018 (November 7, 2018): 1–10. http://dx.doi.org/10.1155/2018/1931634.

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Subcritical water extraction (SCW) was used to extract oil from Chlorella pyrenoidosa. The operational factors such as reaction temperature, reaction time, and biomass loading influence the oil yield during the extraction process. In this study, response surface methodology was employed to identify the desired extraction conditions for maximum oil yield. Experiments were carried out in batch reactors as per central composite design with three independent factors including reaction temperature (170, 220, 270, 320, and 370°C), reaction time (1, 5, 10, 15, and 20 min), and biomass loading (1, 3,
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Alibekov, Ravshanbek Sultanbekovich, Siti Mazlina Mustapa Kamal, Farah Saleena Taip, Alifdalino Sulaiman, Abdugani Mutalovich Azimov, and Klara Abdyrazahovna Urazbayeva. "Recovery of Phenolic Compounds from Jackfruit Seeds Using Subcritical Water Extraction." Foods 12, no. 17 (2023): 3296. http://dx.doi.org/10.3390/foods12173296.

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Jackfruit is one of the major fruits cultivated in many Asian countries. Jackfruit seeds are generally disposed of into the environment, which causes an environmental concern that leads to biowaste accumulation. The seeds have excellent nutritional value, such as carbohydrates, protein, fats, minerals, and bioactive compounds. Bioactive compounds, such as phenolic, can be recovered from jackfruit seeds that could add value to the food and pharmaceutical industry. Thus, this study focused on utilizing subcritical water to extract the phenolic compounds from jackfruit seeds and correlate them wi
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Kodama, Shoko, Tetsuya Shoda, Wahyudiono Wahyudiono, Siti Machmudah, Hideki Kanda, and Motonobu Goto. "Subcritical Water Extraction of Polysaccharides Using a Semi-Batch Extractor." Modern Applied Science 9, no. 7 (2015): 220. http://dx.doi.org/10.5539/mas.v9n7p220.

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Subcritical water is an environmentally friendly method with a wide range of applications, such as extraction,hydrolysis, and wet oxidation of organic compounds. Here, water at subcritical conditions was applied to extractpolysaccharides from Ganoderma lucidum (G. lucidum) and barley grains at 120 – 180 oC and 4.0 MPa using asemi-batch system. The liquid products were directly micronized and contacted with hot air to form microsphereparticles. During extraction process, cell wall disruptions of G. lucidum and barley grains took place, allowingthe removal of the polysaccharides isolating other
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