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Radical Scavenging Activity and Quercetin Content of Muntingia calabura L. Leaves Extracted by Various Ethanol Concentration 不同浓度乙醇提取物对芒廷叶片自由基清除活性及槲皮素含量的影响
Pub Date : 2020-08-17 DOI: 10.22146/JFPS.581
R. Pertiwi, Suwaldi, R. Martien, E. Setyowati
ABSTRACT Muntingia calabura is broadly cultivated and has become a common roadside tree in Indonesia that is known as "Kersen," or cherry. The current study aimed to determine the activities of the phytochemical constituent (i.e., phenolic and flavonoid total contents) with various concentrations of ethanolic extract of M. calabura leaves (EEMC) to determine the best one and the in vitro antioxidant activities and quercetin content using TLC Densitometry. The extraction was carried out by maceration with various concentrations of ethanol (96% v/v; 70% v/v and 50% v/v) to obtain the ethanolic extract of  Muntingia calabura , L leaves. The determination of Quercetin was conducted by Thin Layer Chromatography (TLC) densitometry, and the total phenolic was analyzed with reagent Folin-Ciocalteu while the flavonoid content we identified by applying the colourimetric method. The antioxidant capacity was measured using the radical scavenging assay of 1,2-diphenyl-2-picrylhydrazyl (DPPH). The phytochemical study showed that phenolics, saponins, tannins, and flavonoids were present in all EEMC. The extract obtained by 96% ethanol showed the highest total antioxidant activity, reducing power and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity. The same extract also exhibited the highest flavonoid content. However, the extract obtained by 70% ethanol showed the phenolic content, and the highest quercetin content was obtained by using 50% ethanol. The result from the EEMC analysis indicated that Muntingia calabura leaf extract contains essential bioactive compounds and shows potential as a source of antioxidants in M calabura which uses 96% ethanol solvent and has the highest quercetin content in M calabura using 50% ethanol solvent  Keywords: DPPH,  Muntingia calabura , phenolic total, antiradical activity, TLC densitometry
在印度尼西亚,卡拉布拉芒廷尼亚(Muntingia calabura)被广泛种植,已成为一种常见的路边树种,被称为“Kersen”或樱桃。本研究旨在通过薄层色谱密度法测定不同浓度的水青叶乙醇提取物(EEMC)对水青叶植物化学成分(即总酚和总黄酮含量)的活性,确定最佳的水青叶乙醇提取物,并测定其体外抗氧化活性和槲皮素含量。用不同浓度的乙醇(96% v/v;70% v/v和50% v/v),得到芒花叶乙醇提取物。槲皮素的含量采用薄层色谱(TLC)密度法测定,总酚用Folin-Ciocalteu试剂测定,黄酮类含量用比色法测定。采用1,2-二苯基-2-苦味酰肼(DPPH)自由基清除法测定其抗氧化能力。植物化学研究表明,所有植物均含有酚类物质、皂苷、单宁和黄酮类物质。96%乙醇提取液的总抗氧化能力、还原能力和DPPH(2,2-二苯基-1-苦酰肼)自由基清除能力最强。同一提取物的类黄酮含量也最高。而70%乙醇提取液中酚类含量最高,50%乙醇提取液中槲皮素含量最高。emc分析结果表明,96%乙醇溶剂下的葫芦叶提取物含有重要的生物活性物质,具有开发抗氧化剂的潜力,50%乙醇溶剂下的葫芦叶提取物槲皮素含量最高。关键词:DPPH,葫芦叶提取物,酚总含量,抗自由基活性,TLC密度测定
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引用次数: 11
α-Amilase Inhibitory Activity of Fraction of Ethanolic Extract of Lebui Seed (Cajanus cajan (L.) Millsp.) Grown in West Nusa Tenggara 麻菜籽乙醇提取物部分α-淀粉酶抑制活性研究Millsp)。生长在西努沙登加拉
Pub Date : 2020-07-02 DOI: 10.22146/jfps.720
Dian Resti Setyaningrum, Rumiyati, Y. A. Purwestri, S. Saloko, A. Nugroho, Y. Pranoto, S. Widyastuti
Diabetes is a metabolic syndrome characterized by high blood sugar levels or hyperglycemia.Alpha-amylase inhibitors can be used as an antidiabetic that controls postprandial hyperglycemia.Alpha-amylase inhibitors are found in plants as protein and non-protein bioactive content such as in lebuiseed. The purpose of this study was to determine the activity of alpha-amylase inhibition of the fraction ofethanol extract of lebui seed. This research was carried out by extraction of lebui seed and then fractionatedlebui extract to obtain n-hexane fraction (HF), ethyl acetate fraction (EAF), and water fraction (WF). Thefractions then tested to alpha-amylase inhibition activity in vitro by measuring the reducing sugar using3.5-dinitrosalicylic (DNS) reagent. Furthermore, the identification of the bioactive content of each fraction wascarried out using thin layer chromatography. The results of alpha-amylase inhibition activity test showed thatall fractions had the ability to inhibit alpha-amylase. The IC50 value of the n-hexane fraction, ethyl acetatefraction, and water fraction were 173.05 mg/ml, 9.98 mg/ml, and 137.19 mg/ml, respectively. Ethyl acetatefraction has the smallest IC50 value compared to other fractions. Based on the identification of the bioactivecontent, bioactive content that is only found in the ethyl acetate fraction but not in other fractions are tannins.Therefore, the chemical content in lebui seed which acts as an alpha-amylase inhibitor might be tannins.
糖尿病是一种以高血糖或高血糖为特征的代谢综合征。-淀粉酶抑制剂可用作抗糖尿病药,控制餐后高血糖。α -淀粉酶抑制剂在植物中以蛋白质和非蛋白质生物活性成分的形式存在,如在豆蔻籽中。本研究的目的是测定大豆种子乙醇提取物馏分对α -淀粉酶的抑制活性。本研究通过对豆荚种子进行提取,对豆荚提取物进行分馏,得到正己烷馏分(HF)、乙酸乙酯馏分(EAF)和水馏分(WF)。采用3.5-二硝基水杨酸(DNS)试剂测定还原糖,测定各组分体外α -淀粉酶抑制活性。采用薄层色谱法对各组分的生物活性含量进行鉴定。α -淀粉酶抑制活性试验结果表明,各组分均具有抑制α -淀粉酶的能力。正己烷馏分、乙酸乙酯馏分和水馏分的IC50值分别为173.05 mg/ml、9.98 mg/ml和137.19 mg/ml。与其他馏分相比,乙酸乙酯馏分的IC50值最小。根据生物活性含量的鉴定,生物活性含量只在乙酸乙酯部分中发现,而在其他部分中没有发现的是单宁。因此,豆科种子中具有α -淀粉酶抑制剂作用的化学物质可能是单宁。
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引用次数: 3
Protection Effect of Self-Nanoemulsifying Drug Delivery System (SNEDDS) Piroxicam as Ulcerogenic Agent towards Malondialdehid Level and Protein Expression of Caspase-3, COX-1, COX-2 at Rat Gastric 自纳米乳化给药系统(SNEDDS)吡罗昔康对大鼠胃丙二醛水平及Caspase-3、COX-1、COX-2蛋白表达的保护作用
Pub Date : 2020-07-02 DOI: 10.22146/JFPS.732
Iis Wahyuningsih, Kurnia Ambarwati, Erninda Ayu Hapsari, Afifah Fauziyyah, A. Ikhsanudin, D. Pertiwi, W. Widyaningsih
The aim of this study was to determine the protection effect of SNEDDS piroxicam ulcerogenic agent against malondialdehyde (MDA) level and protein expression of caspase-3, COX-1, COX-2. The research was conducted using the test animals as much as 30 male white Sprague dawley (SD) rats aged 1-2 months with a weight of 100-200 grams divided into 5 groups. Treatment was given for 28 days orally. On the 29th day blood samples were also taken for the determination of MDA (Malondialdehid) levels by Thiobarbituric Acid Reactive Substance (TBARs) method using a visible spectrophotometer. Rats were sacrificed, then gastric organs were taken for immunohistochemical testing of caspase-3 and COX-1 expression, COX-2. The statistical analysis showed that the piroxicam SNEDDS group and the piroxicam suspension group decreased expression of the caspase-3 protein, increased COX-1 expression, decreased COX-2 and significantly decreased MDA levels. The piroxicam-containing SNEDDS (Self-Nanoemulsifying Drug Delivery System) form has protection against ulcogenic piroxicam.
本研究旨在探讨SNEDDS吡罗西康致溃疡剂对丙二醛(MDA)水平及caspase-3、COX-1、COX-2蛋白表达的保护作用。实验动物为30只1 ~ 2月龄雄性SD大鼠,体重100 ~ 200克,分为5组。口服治疗28天。第29天,采用硫代巴比妥酸反应物质(TBARs)法,用可见分光光度计测定丙二酚(MDA)水平。处死大鼠,取胃脏器免疫组化检测caspase-3、COX-1、COX-2的表达。统计分析显示,吡罗昔康SNEDDS组和吡罗昔康混悬液组caspase-3蛋白表达降低,COX-1表达升高,COX-2表达降低,MDA水平显著降低。含有吡罗昔康的SNEDDS(自纳米乳化药物递送系统)形式对吡罗昔康致溃疡具有保护作用。
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引用次数: 0
Water-in-Oil-in Water (W/O/W) Double Emulsion Formulations using Variation Concentration of Carboxymethyl Cellulose Sodium 用不同浓度的羧甲基纤维素钠制备油中水(W/O/W)双乳液
Pub Date : 2020-07-02 DOI: 10.22146/JFPS.739
Devina Tania, Marchaban, Rina Kuswahyuning
Makromolekul hidrokoloid dinilai mampu menstabilkan emulsi ganda. Penelitian ini bertujuan untuk membuat formulasi emulsi ganda air dalam minyak dalam air (A/M/A) dengan menggunakan natrium karboksimetil selulosa (CMC Na) sebagai emulgator fase air eksternal. Emulsi primer air dalam minyak (A/M) dibuat dengan parafin cair sebagai fase minyak dan mengevaluasi pengaruh konsentrasi emulgator span 80, yaitu 5, 10, 15, dan 20%, terhadap mikroskopi ukuran droplet, viskositas, dan stabilitas emulsi A/M setelah uji heati4ng-cooling cycle. Span 80 dengan konsentrasi 15% menghasilkan karakteristik emulsi primer A/M yang paling baik. Emulsifikasi emulsi primer A/M ke dalam fase air eksternal yang mengandung CMC Na menghasilkan emulsi ganda A/M/A. Peningkatan konsentrasi CMC Na dari 1, 2, dan 3% menghasilkan peningkatan viskositas emulsi ganda secara signifikan. Mikroskopi visual droplet minyak menunjukkan rentang ukuran droplet minyak yang relatif besar pada semua emulsi ganda A/M/A. Pelepasan model zat warna larut air (Ponceau 4R) dari semua emulsi ganda A/M/A sangat kecil (0,06-0,09%) setelah 6 jam pengujian yang mengindikasikan potensi penggunaan emulsi ganda ini sebagai sistem penghantaran lepas lambat. Emulsi ganda A/M/A pada semua konsentrasi CMC Na tidak memisah setelah uji stabilitas dengan metode heating-cooling cycle.
据估计,大氢化合物分子具有稳定双乳液的特性。本研究旨在通过使用碳水化合物甲基淀粉钠(CMC Na)作为外水相位乳化,创建水中水中双水乳化配方(A/M/A)。油中的初级水乳液(A/M)是用熔融石蜡制成的,它可以评估油表的80、10、15和20%的乳液浓度对滴脂、粘度和A/M乳化剂的影响。Span - 80%的浓度为15%,可以产生最好的原发性乳液特征。乳化的原发性A/M进入含有CMC Na的外部水相,产生A/M/A的双乳液。CMC Na浓度的增加从1、2和3%导致乳化粘度显著增加。可视油滴式微咖啡显示油滴的大小与A/M/A的所有双乳液相对较大。在6小时的测试后,水溶色物质(Ponceau 4R)的样本中,极小的A/M/A(0.06 - 0.09%)的释放,表明了作为减速传导系统使用这种双乳液的潜力。所有CMC的浓度均有A/M/A的双乳液,在用循环头电法测试稳定性后无效。
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引用次数: 2
Analysis of Adulterated Pangasius Hypopthalmus Oil by ATR-FTIR Spectroscopy and Chemometric ATR-FTIR光谱及化学计量学分析掺假下丘脑对虾油
Pub Date : 2019-11-29 DOI: 10.22146/jfps.668
L. Andina, Revita Saputri, Aristha Novyra Putri, E. Lukitaningsih, A. Rohman
In this recent study, ATR-FTIR spectroscopy and chemometrics have been successfully used for theclassification and quantitative analysis of adulterated Pangasius Hypopthalmus (P. hypopthalmus) oil. The aimof this research was to evaluate the ability of ATR-FTIR spectroscopy and chemometric to perform theclassification and quantitative analysis of adulterated P. hypopthalmus oil in a binary mixture with palm oil(PO) and coconut oil (CO). In the development of FTIR spectroscopy combined with chemometrics for theclassification and quantitative analysis of P. hypopthalmus oil, P. hypopthalmus oil (MP and LFP) mixed withother oils such as coconut oil (CO) and palm oil (PO) at concentrations of 1-99% v/v. Classification of P.hypopthalmus oil, PO and CO were performed by the principal component analysis (PCA) and thequantification analysis was carried out by partial least square (PLS). Based on the optimization process, thebest classification results were obtained using the first derivative spectra at wave numbers of 1400-1100 cm-1.The prediction of percentage adulterated oil by PLS method also showed very good values of R2 greater than0.9999 and low standard error values in the range of 0.0176-0.703. The prediction was also perform at1400-1100 cm-1 wavenumbers using the first derivative spectra.
本文采用ATR-FTIR光谱法和化学计量学方法对掺假的下丘脑巴沙鱼油进行了分类和定量分析。本研究的目的是评价ATR-FTIR光谱和化学计量学对棕榈油(PO)和椰子油(CO)二元混合物中掺假的下视黄酮油进行分类和定量分析的能力。在发展FTIR光谱与化学计量学相结合的方法对下丘脑油进行分类和定量分析时,将下丘脑油(MP和LFP)与其他油(如椰子油(CO)和棕榈油(PO))在浓度为1-99% v/v的情况下混合。采用主成分分析(PCA)对下丘脑油、PO和CO进行分类,采用偏最小二乘法(PLS)进行定量分析。在此基础上,采用波数为1400 ~ 1100 cm-1的一阶导数谱获得了最佳分类效果。PLS法预测油中掺假率的R2值大于0.9999,标准误差在0.0176 ~ 0.703范围内。利用一阶导数谱在1400 ~ 1100 cm-1波数下进行了预测。
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引用次数: 0
The Biochemistry, Toxicology, and Uses of the Pharmacologically Active Phytochemicals: Alkaloids, Terpenes, Polyphenols, and Glycosides 生物化学、毒理学和药理学活性植物化学物质的使用:生物碱、萜烯、多酚和糖苷
Pub Date : 2019-11-27 DOI: 10.22146/jfps.666
Chinaza Godswill Awuchi
The research focused on the biochemistry and the medicinal uses of alkaloids, terpenes,polyphenols, and glycosides. Several parts of plants such as bark, root, leaf, stem, etc. are being used torevert abnormalities back to normal, prevent illnesses, or allay symptoms. These plant parts containbioactive compounds such as terpenes, glycosides, polyphenols, and alkaloids. Alkaloids have a rangeof pharmacological activities such as antiasthma (e.g. ephedrine), anticancer (e.g. homoharringtonine),antimalarial (e.g. quinine). Other alkaloids possess stimulant (e.g. cocaine, caffeine, theobromine, nicotine)and psychotropic activities (e.g. psilocin), and have been widely used as recreational drugs orin entheogenic rituals. Alkaloids can be toxic too (e.g. tubocurarine, atropine). Although alkaloids act ondiverse metabolic systems in humans and animals, they almost uniformly induce a bitter taste. Thecharacteristics and number of the structures of phenol in polyphenols underlie the unique chemical,physical, and biological (metabolic, therapeutic, toxic, etc.) properties of specific members of the class;e.g. ellagitannin and tannic acid. Generally, foods often contain complex mixtures of polyphenols. Severalpolyphenolic extracts, such as from grape seeds, olive pulp, maritime pine bark, or grape skin, are sold asingredients for functional foods, cosmetics, and dietary supplements. Terpenoids and terpenes are theprimary components of the essential oils of most types of flowers plants. Essential oils are used widely asscents and fragrances in perfumery and also in traditional medicine, such as aromatherapy. Similarly,many plant glycosides are used as medicines. Amygdalin and laetrile (a synthetic derivative) wereinvestigated as potential drugs for cancer treatment and were promoted as alternative medicine;nevertheless, they are ineffective and dangerous. Pharmacologically active phytochemicals can haveuseful applications, as well as safety concerns.
研究重点是生物碱、萜烯、多酚和糖苷的生物化学和药用。植物的一些部分,如树皮、根、叶、茎等,被用来使异常恢复正常,预防疾病,或缓解症状。这些植物部位含有生物活性化合物,如萜烯、糖苷、多酚和生物碱。生物碱具有一系列的药理活性,如抗哮喘(如麻黄碱)、抗癌(如高杉碱)、抗疟疾(如奎宁)。其他生物碱具有兴奋剂(如可卡因、咖啡因、可可碱、尼古丁)和精神活性(如幻脑碱),已被广泛用作娱乐性药物或致梦仪式。生物碱也可能是有毒的(如管库碱、阿托品)。尽管生物碱作用于人类和动物的多种代谢系统,但它们几乎都能产生苦味。多酚中酚的结构特征和数量是该类中特定成员独特的化学、物理和生物(代谢、治疗、毒性等)特性的基础。鞣花单宁和单宁酸。一般来说,食物通常含有复杂的多酚混合物。几种多酚提取物,如葡萄籽、橄榄果肉、海松皮或葡萄皮,作为功能性食品、化妆品和膳食补充剂的成分出售。萜类和萜烯是大多数花卉植物精油的主要成分。精油广泛用于香料和香料,也用于传统医学,如芳香疗法。同样,许多植物糖苷也被用作药物。苦杏仁苷和苦杏仁素(一种合成衍生物)被研究为治疗癌症的潜在药物,并被推广为替代药物,然而,它们无效且危险。具有药理活性的植物化学物质可以有有用的应用,以及安全问题。
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引用次数: 21
Comparison of Anti-oxidant Activity of Five Elected Wild Commercial Mushrooms in Four Different Solvents as an Alternative Oxidative Stress Reliever 五种野生商业蘑菇在四种不同溶剂中的抗氧化活性比较
Pub Date : 2019-11-23 DOI: 10.22146/jfps.667
Shahnaz Salamat, M. Shahid
Mushroom also known as a lit source of nutritional and therapeutical component so in order toevaluate the usefulness of the Pakistani wild mushroom strains as the possible nutracueticals, adetailedstudy entailing several tests for the determination of anti-oxidant potential was carried out on the electedmushrooms in four different solvents. Strains of Lentinus edodes, Pleurotus ostreatus, Volvariella volvacea,Pleurotus eryngii and Ganoderma lucidum were extracted for this particular purpose in the water, n- butanol,n-hexane and choloroform solvents. Test models including Total Phenolic Content assay, Total FlavonoidContent assay, 2,2-diphenyl-1,1-picrylhydrazyl (DPPH) Scavenging Activity assay and Reducing Powerassay were utilized for carrying out the comparative analysis among the selected mushrooms. The acquiredresults indicated that the extract of Volvariella volvacea and Pleurotus eryngii possess copacetic anti-oxidantpotential and can be utilized as oxidative stress reliever in humans. Furthermore, extraction studies alsoindicated that water is the most suitable solvent for anti-oxidants extraction for these mushrooms. Finding ofthe anti-oxidant potential for elected wild mushrooms contra indicate that these mushrooms can be safelyexploited as a amended natural anti-oxidant in comparison to its synthetic counterpart.
蘑菇也被认为是营养和治疗成分的重要来源,因此为了评估巴基斯坦野生蘑菇菌株作为可能的营养保健品的有效性,在四种不同的溶剂中对选定的蘑菇进行了详细的研究,包括几项测试,以确定其抗氧化潜力。在水、正丁醇、正己烷和氯仿溶剂中分别提取香菇、平菇、扁豆菇、杏鲍菇和灵芝。采用总酚含量测定、总黄酮含量测定、2,2-二苯基-1,1-苦酰肼(DPPH)清除活性测定和还原力测定等试验模型对所选蘑菇进行比较分析。结果表明,草粪和杏鲍菇提取物具有较强的抗氧化活性,可作为人体氧化应激的缓解剂。此外,提取研究还表明,水是提取香菇抗氧化剂最合适的溶剂。所选野生蘑菇抗氧化潜力的发现表明,与合成蘑菇相比,这些蘑菇可以作为一种改良的天然抗氧化剂被安全利用。
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引用次数: 0
The Effect of Metanolic Extract and Ethyl Acetate Fraction of Kepel Fruits to Lipid Peroxide Concentration in Liver of CCl4-induced Rat 吉柏果代谢提取物和乙酸乙酯部分对ccl4诱导大鼠肝脏过氧化脂质浓度的影响
Pub Date : 2019-11-20 DOI: 10.22146/jfps.661
Mitsalina Fildzah Arifah, S. Martono, S. Riyanto, C. M. Airin
Accumulation lipid peroxidation can lead to the formation of malondialdehyde to generatefree radicals. Antioxidant will minimize free radical related health problems, such as naturalantioxidant from meat of kepel (Stelechocarpus burahol) (Blume) Hook. F. & Thompson) fruits.Antioxidant activities of methanol extracts and acetate ethyl fractions meat of kepel fruits calculatedprofile of malondialdehyde concentration (ng/mL) in CCl4 induced acute liver toxicity in femaleSprague Dawley rats using ELISA competitively method. All of groups induced CCl4 i.p. at 0 h, exceptuntreated and solvent control group, then vitamin C , methanol extracts and acetate ethyl fractionsp.o. once daily for 72 h. Identification of secondary metabolite was using phytochemical screeningand Thin Layer Chromatography (TLC). Liver weighed and calculated relative organ weight (ROW)of liver, then all of data analyzed using statistic tests, One Way ANOVA and Kruskall Wallis. Thisstudy showed methanol extracts can decrease MDA concentration, ALT and AST were more potent(significantly p<0.05) than acetate ethyl fractions and vitamin C. The TLC analysis identified methanolextracts have same polarity with quercetin (Rf = 0,26) and acetate ethyl fractions showed otherflavonoid class, except rutin and quercetin. ROW of acute liver toxicity in rats increased significantlyin CCl4 and vitamin C groups.
脂质过氧化积累可导致丙二醛的形成,产生自由基。抗氧化剂将减少自由基相关的健康问题,如天然抗氧化剂从肉kepel (Stelechocarpus burahol) (Blume)钩。F. & Thompson)水果。槟榔果肉中甲醇提取物和乙酸乙酯部分的抗氧化活性采用ELISA竞争法计算CCl4诱导的雌性布拉格道利大鼠急性肝毒性丙二醛浓度(ng/mL)谱。除处理组和溶剂对照组外,其余各组均在0 h诱导CCl4,其次是维生素C、甲醇提取物和乙酸乙酯馏分。使用植物化学筛选和薄层色谱(TLC)鉴定次生代谢物。肝脏称重并计算肝脏相对脏器重量(ROW),然后采用统计检验、单因素方差分析和Kruskall Wallis对所有数据进行分析。结果表明,甲醇提取物对MDA、ALT和AST的抑制作用显著高于乙酸乙酯和维生素c (p<0.05)。薄层色谱分析表明,甲醇提取物与槲皮素极性一致(Rf = 0.26),乙酸乙酯提取物除芦丁和槲皮素外,其余黄酮均为类黄酮。CCl4和维生素C组大鼠急性肝毒性ROW显著升高。
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引用次数: 0
Progress in Synthesis of Monoglycerides for Use in Food and Pharmaceuticals 食品和医药用单甘油酯的合成研究进展
Pub Date : 2017-07-25 DOI: 10.4172/2472-0542.1000128
Nilesh R. Rarokar, Sunil S. Menghani, Deweshri R Kerzare, P. Khedekar
Glycerides are lipid esters of the glycerol molecule and fatty acids. Their primary function is the storage of energy. Due to its structure and properties, glycerol participates in the formulation or synthesis of many compounds such as food products, cosmetics, pharmaceuticals, liquid detergents. Monoglycerides (MGs) can be formed by both industrial chemical glycerolysis and biological or enzymatic processes. Chemical glycerolysis bring issues of low MGs yield, high operating temperature, formation of undesirable by-products and high energy consumption. On the other hand enzymatic processes have advantages of mild reaction conditions and high purity of MGs. But, several purification steps are required to obtain food or pharmaceutical grade MG, such as neutralization of the reaction media and discoloration followed by expensive molecular distillation. The purpose of this article is to review the main challenges in the synthesis of MGs from triglycerides (TGs) contained in the various fixed oils and application thereof in the food and pharmaceuticals.
甘油酯是甘油分子和脂肪酸的脂质酯。它们的主要功能是储存能量。由于它的结构和性质,甘油参与了许多化合物的配方或合成,如食品、化妆品、药品、液体洗涤剂。单甘油酯(mg)可以通过工业化学甘油水解和生物或酶的过程形成。化学甘油解存在mg收率低、操作温度高、产生不良副产物和能耗高等问题。另一方面,酶法具有反应条件温和、mg纯度高的优点。但是,要获得食品级或制药级MG,需要几个纯化步骤,例如反应介质中和和变色,然后进行昂贵的分子蒸馏。本文的目的是回顾从各种固定油中所含的甘油三酯(TGs)合成mg的主要挑战及其在食品和药品中的应用。
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引用次数: 31
Effect of Taurine on The Respiratory System of Rats 牛磺酸对大鼠呼吸系统的影响
Pub Date : 2013-03-26 DOI: 10.14499/JFPS
D. Pujimulyani, Sri Raharjo, Yustinus Marsono, Umar Santoso
The present study was designed to investigate the effect of taurine on isolated trachea and pulmonary artery of rats and the possible  mechanism(s) of action. The possible antioxidant effect  of  taurine  was  also  studied  by  measuring  its  protective  effect  against cyclophosphamide  induced  lung  injuiry.  Taurine  produced  a  concentration  dependent relaxation  in  the  isolated  tracheal  strips  and  pulmonary  arterial  rings  precontracted  by serotonin  (2x10-4  mM). The  relaxing effect of  taurine was not  influenced by pretreatment with  nitric  oxide  synthase  inhibitor  (L-NAME)  ,  cysteinyl  leukotreines  receptor  1  blocker (montelukast)  ,  H1  receptor  blocker  (chlorpheniramine)  ,  β-adrenoceptor  blocker (propranolol),  potassium  channel  blocker  (amiodarone)  ,  cyclo-oxygenase  inhibitor (indomethacin) or   muscarinic  receptor blocker  (atropine). Preincubation with  adenosine receptor blocker  (aminophylline) significantly potentiated  the  relaxing effect of  taurine  in the  tracheal  strips  and  pulmonary  arterial  rings.  Cyclophosphamide  (CYP,  150  mg/kg) administerated  i.p.  in  a  single  dose was  used  to  produce  lung  injuiry  in  rats.  CYP  caused marked  increase  in  lung  lipid peroxides  (MDA)  and  decrease  in  lung  reduced  glutathione (GSH).  Administration  of  taurine    (1%  in  drinking  water)  starting  7  days  before  CYP  and continuing  throughout  the  duration  of  the  experiment  (24  hours)  improved  significantly the lung GSH and MDA. It can be concluded that taurine relaxes precontracted rat tracheal strips and pulmonary arterial rings probably by direct effect on the smooth muscles. Also, the observed  antioxidant    activity of  taurine   which may  contribute  to  its  relaxant  effect suggesting the usefulness of turine in pulmonary hypertension.
本研究旨在探讨牛磺酸对大鼠离体气管和肺动脉的影响及其可能的作用机制。通过测定牛磺酸对环磷酰胺所致肺损伤的保护作用,探讨牛磺酸可能的抗氧化作用。牛磺酸在5 -羟色胺预收缩的离体气管条和肺动脉环(2x10- 4mm)中产生浓度依赖性松弛。一氧化氮合酶抑制剂(L-NAME)、半胱氨酸白氨酸受体1阻滞剂(孟鲁司特)、H1受体阻滞剂(氯苯那敏)、β-肾上腺素受体阻滞剂(普萘洛尔)、钾通道阻滞剂(胺碘酮)、环加氧酶抑制剂(吲哚美辛)或毒碱受体阻滞剂(阿托品)预处理均不影响牛磺酸的松弛作用。用腺苷受体阻滞剂(氨茶碱)预孵育可显著增强牛磺酸在气管条和肺动脉环中的松弛作用。研究了单次给药环磷酰胺(CYP, 150 mg/kg)对大鼠肺损伤的影响。CYP引起肺脂质过氧化物(MDA)显著升高,肺还原性谷胱甘肽(GSH)显著降低。从CYP前7天开始并在整个实验期间(24小时)持续给予牛磺酸(饮用水中1%),可显著改善肺GSH和MDA。由此可见,牛磺酸可能通过直接作用于平滑肌使预收缩的大鼠气管条和肺动脉环松弛。此外,观察到牛磺酸的抗氧化活性可能有助于其松弛作用,提示牛磺酸在肺动脉高压中的有用性。
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引用次数: 100
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Journal of Food and Pharmaceutical Sciences
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