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《中国调味品》2021,(3)
对八角、小茴香、花椒、山萘4种辛香料精油中茴香精含量进行比较分析。采用水蒸气蒸馏法提取4种辛香料中精油,用气相色谱-质谱联用方法(GC-MS)分离并确定各精油中茴香精含量。结果表明:八角提取的精油中鉴定出24种化合物,占八角精油总量的99.63%,其中茴香精占86.08%;小茴香提取的精油中鉴定出25种化合物,占小茴香精油总量的96.68%,其中茴香精占9.33%;花椒提取的精油中鉴定出25种化合物,占花椒精油总量的98.67%,其中茴香精占21.96%;山萘提取的精油中鉴定出34种化合物,占山萘精油总量的88.28%,其中茴香精占9.91%。4种辛香料中茴香精的含量由多到少的顺序为:八角花椒山萘小茴香。 相似文献
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茴香精油提取工艺优化及成分分析 总被引:1,自引:0,他引:1
分别采用水蒸气蒸馏法、同时蒸馏萃取法(SDE)提取茴香种子精油,运用Minitab15.0数据分析软件,通过三因素三水平的响应面法优化茴香精油提取工艺条件,并利用气相色谱质谱(GC-MS)分析茴香精油组成.结果表明:水蒸气蒸馏法制备茴香种子精油的最佳工艺条件为:功率为66 W,液料比为6∶1,蒸馏时间为2.5h,茴香精油的提取率为6.25%.同时蒸馏萃取法制备茴香种子精油的最佳工艺条件为:功率为110W,液料比为7∶1,蒸馏时间为4.0h,茴香种子精油的提取率为3.98%.GC-MS分析结果表明茴香种子精油主要由酮类和烯类组成,酮类占48.86%,烯类占33.07%.此外,茴香脑9.78%. 相似文献
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为分析不同产地小茴香挥发油成分及反式茴香脑含量,文章利用气相色谱-质谱联用法(GC/MS)分析比较了湖北、新疆、内蒙古、四川、江西和广西不同产地的小茴香挥发油成分组成,并采用气相色谱法(GC)测定其中反式茴香脑含量。结果表明:不同产地小茴香挥发油含量在1.29~2.24mL/100g之间,分析其化学成分发现反式茴香脑的含量相对较高,但差异较大。反式茴香脑浓度在12.5~200μL/mL范围内与峰面积呈良好线性关系(R2=0.9999),检出限为0.015μL/mL,平均回收率为99.76%,峰面积的RSD值为0.50%(n=5)。 相似文献
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采用顶空固相微萃取法萃取茴香籽挥发性成分,然后用GC-MS联机分析,并与水蒸汽蒸馏法获取的茴香籽精油成分进行比较.用CAR on PDMS柱萃取时,检测出26种成分,解析出占总成份95.765%的22种成份,主要成份为(E)-茴香脑(相对含量76.878%),p-茴香醛(4.215%),柠檬烯(4.167%)和龙蒿脑(2.792%).水蒸汽蒸馏法萃取茴香籽,以2.44%得油率获得精油,共检测出26个成份,解析出占总成份98.720%的21种成份,主要成份是(E)-茴香脑(相对含量84.334%),龙篙脑(5.419%),葑酮(2.619 9,6)和柠檬烯(2.209%). 相似文献
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研究同时蒸馏-萃取法(SDE)提取茴香花精油最佳工艺条件,并分析精油组成。采用同时蒸馏萃取法提取茴香花精油,运用Minitab15.0数据分析软件,采用三因素三水平的响应面法优化茴香花精油提取工艺条件;采用气相色谱质谱(GC-MS)分析茴香花精油组成。茴香花精油提取的最佳工艺条件为:取采摘后7 d以内的茴香花,功率88 W,液料比6∶1,时间2 h,提取率2.25%。GC-MS分析结果表明茴香花精油主要由酮类和烯类组成,茴香花精油的主要成分是柠檬烯、香芹酮、顺式二氢香芹酮和3,6-二甲基-2,3,3a,4,5,7a-六氢香豆酮。 相似文献
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目的:探究小茴香对去势雌性大鼠骨密度功能的影响,通过大鼠颅骨成骨细胞(ROB)初探其机制。方法:采用SD大鼠进行含小茴香的保健食品配方的急性经口毒性试验,以去势雌性SD大鼠建立骨质疏松动物模型进行增加骨密度的功能性验证。用新生SD乳鼠颅骨为细胞来源培养ROB,CCK–8法观察小茴香40%甲醇提取物对ROB增殖的影响,并观察小茴香40%甲醇提取物对ROB中碱性磷酸酶(ALP)的活性。结果:体内试验中,小茴香配方食品对SD大鼠急性经口LD50大于10 g/kg·bw,为实际无毒级别;与模型对照组比较,小茴香配方食品可显著增加去势模型大鼠骨密度、骨皮质厚度(P<0.05),改善骨小梁结构。在体外试验中,与阴性对照比较,小茴香甲醇40%提取物对ROB的增殖作用显著,最高增殖率为84.96%(P<0.05),同时显著增加ROB的ALP活性(P<0.05)。结论:小茴香配方食品急性经口毒性为实际无毒级别,小茴香40%甲醇提取物具有增加骨密度功能的作用,对ROB具有细胞增殖分化作用。 相似文献
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In the current study, in vitro inhibitory activity of several essential oils obtained from the cultivated plants, Foeniculum vulgare, Mentha piperita and M. spicata, Ocimum basilicum, Origanum majorana, O. onites, O. vulgare, Satureja cuneifolia, and a number of individual essential oil components of terpene and aromatic types were screened against 10 isolated strains of Klebsiella pneumoniae producing extended-spectrum beta-lactamase (ESBL) enzyme, which makes this microorganism quite resistant against the antibiotics: trimetoprime-sulfametoksazol, sulbactam-ampicilin, clavulonate-amoxicilin, ceftriaxon, cefepime, imipenem, ceftazidime, tobramicine, gentamisine, ofloxacin, and ciprofloksasin. All of the essential oils and the components exerted a remarkable inhibition ranging between 32 and 64 μg/mL against all of these strains as strong as the references (ampicilin and oflaxocin) inhibiting at 32 μg/mL. Besides, chemical compositions of the essential oils were elucidated by gas chromatography-mass spectrometry (GC-MS). The essential oils and the pure components widely found in essential oils screened herein have shown remarkable inhibition against ESBL-producing K. pneumoniae strains, which leads to the suggestion that they may be used as food preservatives for this purpose. Practical Application: The essential oils obtained from Foeniculum vulgare, Mentha piperita and M. spicata, O.cimum basilicum, Origanum majorana, O. onites, O. vulgare, and Satureja cuneifolia as well as common essential oil components have shown notable inhibitory effects against 10 isolated strains of Klebsiella pneumoniae producing extended-spectrum beta-lactamase (ESBL) enzyme and they might be used as food preservative or ingredient. 相似文献
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沙棘叶中绿原酸提取工艺研究 总被引:1,自引:0,他引:1
在单因素试验的基础上,采用正交试验的方法,对水煎煮法和酶解法提取沙棘叶中绿原酸的工艺条件进行了优化。试验结果表明:水煎煮法最佳提取工艺条件为:料液比(g∶mL)1∶35,煎煮时间1.0 h,煎煮次数3次。该条件下,沙棘叶中绿原酸提取率为2.42%。酶解法最佳提取工艺条件为:以加5%纤维素酶的pH 4.5的酸性水为提取剂,料液比(g∶mL)1∶15,温度50℃,提取时间1.0 h。该条件下,绿原酸提取率为3.49%。酶解法与水煎煮法相比,绿原酸提取率提高了44.2%。 相似文献
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Evaluation of nitric oxide scavenging activity of certain spices in vitro: a preliminary study 总被引:2,自引:0,他引:2
The plant extracts of some commonly used spices were examined for their possible regulatory effect on nitric oxide (NO) levels using sodium nitroprusside as a NO donor in vitro. Most of the extracts tested demonstrated direct scavenging of NO and exhibited significant activity and the potency of scavenging activity was in the following order: Foeniculum vulgare (aqueous) > Citrus limettiodes > Murraya koenigii (seed, aqueous) > Murraya koenigii (leaf, aqueous) > Curcuma aromatica (aqueous) > Murraya koenigii (leaf, dichloromethane:methanol) > Mentha arvensis (chloroform) > Mentha arvensis (aqueous) > Curcuma longa > Gingko biloba > Foeniculum vulgare (dichloromethane:methanol) > Zingiber officinale (aqueous) > Curcuma aromatica (ethanolic) > Murraya koenigii (seed, dichloromethane:methanol). All the evaluated extracts exhibited a dose-dependent NO scavenging activity. The aqueous extract of Foeniculum vulgare showed a greatest NO scavenging effect of 79.75% at 62.5 microg/mL as compared to the positive control, Gingko biloba where 36.22% scavenging was observed at similar concentration. The present results suggest that these spices might be potent and novel therapeutic agents for scavenging of NO and the regulation of pathological conditions caused by excessive generation of NO and its oxidation product, peroxynitrite. 相似文献
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以铁皮石斛花为主要原料,将其与菊花、茉莉花进行复配,采用混料设计,以多糖、黄酮、多酚含量为考察指标,结合感官评价进行权重分析,确定铁皮石斛花复配茶的最佳复配比例并研究其体外抗氧化、降血糖活性。试验结果表明,m(铁皮石斛花)∶m(茉莉花)∶m(菊花)=5∶1∶4为最佳复配比例,多糖、多酚、黄酮含量分别为18.89、30.85、51.27 mg/100mL。铁皮石斛花茶与铁皮石斛复配花茶水提物对DPPH自由基、羟自由基、超氧阴离子自由基、ABTS自由基清除率IC 50分别为:石斛花茶0.89、3.51、8.76、1.34 mg/mL,石斛花复配茶0.49、4.20、5.70、0.78 mg/mL;铁还原能力测定最大吸光值分别为0.88、1.28。对α-葡萄糖苷酶及α-淀粉酶的抑制活性IC 50值分别为:铁皮石斛花茶4.47、3.26 mg/mL;铁皮石斛花复配茶5.86、5.50 mg/mL,制备得到的铁皮石斛花复配茶具有良好的抗氧化能力及一定的降血糖效果。研究结果为铁皮石斛花资源的有效利用及多元化产品开发提供了理论依据,最终得到兼具口感与功能性的铁皮石斛复配花茶,为铁皮石斛复配花茶的规模标准化加工提供理论支撑。 相似文献