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1.
本研究对47份柑橘种质幼果总黄酮、总酚和总抗氧化能力进行测定,并用HPLC法对其中15份种质的11种功能性成分进行检测。结果表明,不同类型种质间的功能成分含量、种类差异显著,其中汉森1号、2号酸橙及丹江口红橘总黄酮、总酚含量和总抗氧化能力均显著高于其他种质。汉森2号的柚皮苷、汉森1号的新橙皮苷、香橙2号的芸香柚皮苷、汉森2号的芦丁、普通枳的欧前胡素、圆叶莽山野橘的异欧前胡素、辛弗林和橙皮苷含量、枸橼C-05的柠檬苦素含量最高。通过聚类分析15个份种质可分为6类。相关性分析的结果表明总酚与总黄酮,新橙皮苷与总抗氧能力、总酚、芸香柚皮苷呈显著正相关;柠檬苦素与橙皮苷呈显著负相关,与欧前胡素呈显著正相关。 相似文献
2.
柠檬苦素类似物是一类三萜类化合物，具有广泛的生物活性。本文就柠檬苦素类似物在植物中的分布与结构以及提取与检测方法作了概述；并着重阐述了柠檬苦素类似物的生物活性及其对动物的一些功能作用；最后，对其作为饲料添加剂的应用前景作一展望。 相似文献
3.
为了建立超快速液相色谱-串联质谱法同时测定枳实中6个活性成分(异柚皮苷、柚皮苷、橙皮苷、新橙皮苷、柚皮素和橙皮素)的含量,采用Shim-Pack XR-ODS柱(75 mm×3.0 mm,2.2μm),以0.1%甲酸水溶液(A)-乙腈(B)为流动相,梯度洗脱(0～10 min,10%→30%B;10～12 min,30%→60%B;12～15 min,60%→85%B),平衡时间为3 min,流速为0.5 mL/min,柱温为30℃,进样量为5μL。质谱采用3200 QTRAP三重四极杆串联质谱仪,离子源为电喷雾电离源(ESI源),检测方式为负离子检测,扫描模式为多重反应检测(MRM)。结果显示,异柚皮苷、柚皮苷、橙皮苷、新橙皮苷、柚皮素和橙皮素浓度分别在0.2～8.0μg/mL(r=0.999 2)、1.0～40μg/mL (r=0.999 4)、0.2～8.0μg/mL (r=0.999 7)、0.5～20μg/mL(r=0.999 2)、0.02～0.8μg/mL (r=0.999 7)和0.02～0.8μg/mL (r=0.999 7)浓度范围内与峰面积呈现良好的线性关系;平均回收率(n=9)分别为99.2%、98.7%、98.6%、98.8%、99.3%和99.1%。6批枳实样品测定结果显示:异柚皮苷1.70%～1.97%,柚皮苷11.6%～12.4%,橙皮苷0.481%～0.576%,新橙皮苷3.15%～4.13%,柚皮素0.293%～0.391%和橙皮素0.363%～0.395%。表明该方法快速、准确、重复性好,可用于枳实的质量控制,同时为新兽药开发利用提供参考。 相似文献
4.
柠檬属芸香科,柑桔属,枸橼类常绿果树,是一种经济价值很高的植物.其果汁含多种维生素及矿物质,特别是维生素C的高含量为其他水果所不及.柠檬香精油是食品、日化等工业应用最为广泛的香料之一,果胶又广泛应用于食品、医药、纺织及造纸工业,柠檬所含胡萝卜素是一种天然色素和营养强化剂,类黄酮具有降血脂、防治心脑血管病作用,柠檬苦素具有防治癌症的作用.…… 相似文献
5.
柠檬属芸香科，柑桔属，枸橼类常绿果树，是一种经济价值很高的植物。其果汁含多种维生素及矿物质，特别是维生素C的高含量为其他水果所不及。柠檬香精油是食品、日化等工业应用最为广泛的香料之一，果胶又广泛应用于食品、医药、纺织及造纸工业，柠檬所含胡萝卜素是一种天然色素和营养强化剂，类黄酮具有降血脂、防治心脑血管病作用，柠檬苦素具有防治癌症的作用。 相似文献
6.
柚皮苷是一种天然的黄酮类化合物,主要存在于柑橘类水果的果皮中,具有抗氧化、降血脂、抗炎症和抗癌等多种生物学功能。本文主要综述了柚皮苷的生物学功能及在调控畜禽脂肪代谢、改善肉品质和提高免疫力等方面的作用,为柚皮苷在畜禽生产中的广泛应用提供参考。 相似文献
7.
“衢枳壳”是由常山胡柚小青果干制加工而成的药材。以新鲜采摘的常山胡柚小青果分别采用全果、对半横切、切成宽度为1 cm左右薄片等3种切制方式,以晒干、烘干、冷冻干燥3种干燥方法加工,测定所得净片得率和柚皮苷、新橙皮苷、水分、总灰分含量,以确定最佳的干制工艺。结果表明,所有处理净片的质量指标均符合《浙江省中药炮制规范》2015年版要求。C3处理净片的得率、柚皮苷和新橙皮苷含量均最高,分别为25.97%、11.43%、7.63%,但加工总成本超过市场销售价。切成宽度为1 cm左右薄片的所有处理的净片有效成分含量均显著高于其他组合。切成1 cm左右的薄片烘干处理（C2）,柚皮苷含量最高11.43%,新橙皮苷含量6.47%仅次于C3,经济效益最好,适合在产地推广应用。 相似文献
8.
柚皮中黄酮类化合物含量丰富,黄酮类化合物具有抗癌、抗肿瘤、抗炎震痛、保护心血管、免疫调节和抗衰老等多种生理功能,随着科学技术的不断进步和发展,黄酮类化合物的独特效能将得到不断的发掘及应用,目前已被广泛地应用于多种领域,对柚皮中黄酮类化合物的研究具有广阔的应用前景。本文分析了柚皮中黄酮类化合物的结构、性质和应用,探究了黄酮类化合物的提取方法,为柚子产业的进一步发展以及黄酮类化合物的进一步提取与开发提供理论参考。 相似文献
9.
建立高效液相色谱法测定乳与乳制品中柚皮苷含量的方法。样品用甲醇提取,在284 nm波长下,流动相为体积分数0.1%醋酸水溶液-乙腈（75∶25,V/V）,C18色谱柱分离,经二极管阵列检测器检测,外标法定量。结果表明：柚皮苷在5～500 μg/mL质量浓度范围内线性关系良好,相关系数为0.999 9;分别向乳粉、液态乳和酸乳样品中在加入柚皮苷标准品0.02、0.04、0.08 g/100 g时,加标回收率分别为96.2%～103.2%、96.3%～103.7%和99.7%～104.1%,相对标准偏差分别为1.12%～2.31%、1.25%～1.85%和1.24%～1.66%。该检测方法简便、快速、准确、重复性好,能够测定乳与乳制品中柚皮苷的含量。 相似文献
10.
为寻求控制一种新的防控猪高热综合征中草药饲料添加剂质量的有效方法,本研究采用反相高效液相色谱指纹图谱技术评价中草药添加剂质量,并对其主要成分定量分析方法进行探讨。液相色谱的条件为:Agilent HC-C18色谱柱(4.6 mm×250 mm,5μm)和Agilent保护柱,柱温25℃,流速1 mL/min,以乙腈-0.2%磷酸溶液为流动相进行梯度洗脱,检测波长为280 nm。通过对黄芩苷、橙皮苷、甘草苷对照品和12批次中草药饲料添加剂RP-HPLC指纹图谱的分析,建立了该中草药添加剂RP-HPLC指纹图谱,获得包括有甘草苷、橙皮苷和黄芩苷等相对稳定的15个共有特征峰。定量分析表明每克中草药添加剂样品中平均含量黄芩苷为(8.488±1.084)mg,橙皮苷为(6.321±0.379)mg,甘草苷(0.218±0.157)mg。本研究建立的定性和定量检测方法可用于新的中草药添加剂的质量检测。 相似文献
11.
1. The objective of this study was to investigate the effects of dietary supplementation with natural flavonoids (naringin and hesperidin) on laying hens’ performance, cellular immunity and egg quality parameters. 2. A total of 72 individually caged laying hens were allocated into 1 of 6 treatment groups: a control (C) group that was fed with a basal diet and groups that were offered the same diet further supplemented with hesperidin at 0.75 g/kg (E1), or 1.5 g/kg (E2), or naringin at 0.75 g/kg (N1), or 1.5 g/kg (N2) or α-tocopheryl acetate at 0.2 mg/kg (VE) for 67 d. 3. Supplementation with naringin or hesperidin did not affect the performance and egg quality (P > 0.05) apart from an improvement in the yolk colour that was more orange in naringin and hesperidin groups in comparison to the controls (P-linear < 0.05). Egg yolk and plasma cholesterol levels were not affected by citrus flavonoids (P-linear > 0.05). 4. Inflammatory immune response, measured by phytohaemagglutinin skin test (PHA), was suppressed in laying hens that were fed with either naringin (P-linear < 0.05) or hesperidin (P < 0.05). Egg yolk oxidative stability was improved from the 4th d after naringin or hesperidin supplementation. This beneficial effect was comparable to that of α-tocopheryl acetate and was observed in eggs that were stored for up to 120 d. 5. In conclusion, naringin and hesperidin may favourably prolong the shelf life of eggs, appear to possess anti-inflammatory properties and could improve the yolk colour without any side effects on the performance or egg quality traits. 相似文献
12.
1. The aim of this experiment was to compare the effects of dietary supplementation of hesperidin, naringin and quercetin on laying hen performance, egg quality and egg yolk lipid and protein profiles. 2. A total of 96 Lohmann White laying hens weighing an average of 1500 g at 28 weeks of age were randomly assigned to a basal diet and the basal diet supplemented (0.5 g/kg) with either hesperidin, naringin or quercetin. Each treatment was replicated in 6 cages in an 8-week experimental period. Data were analysed using one-way analysis of variance. 3. None of the dietary flavonoids affected laying performance and eggshell quality. Hesperidin and quercetin supplementations decreased albumen and yolk indexes. 4. As compared to the control group, egg yolk cholesterol content decreased and egg yolk protein content increased in response to dietary hesperidin and quercetin supplementation. The mean egg yolk cholesterol (mg/g) and protein (g/100 g) contents were 10.08/14.28, 16.12/14.08, 14.75/15.04 and 15.15/14.85 for the control group and groups supplemented with naringin, hesperidin and quercetin, respectively. 5. Egg yolk lipid and protein profiles were variable. 6. In conclusion, dietary supplementation of hesperidin or quercetin could be used in the diets during the early laying period to reduce egg yolk cholesterol and increase egg yolk protein, which may be attractive to consumers. 相似文献
13.
BackgroundNaringin and its aglycone naringenin are citrus-derived flavonoids with several pharmacological effects. On the other hand, the mechanism for the anti-diabetic effects of naringenin and naringin are controversial and remain to be clarified further. ObjectiveThis study examined the relationship between glucose uptake and AMP-activated protein kinase (AMPK) phosphorylation by naringenin and naringin in high glucose-treated HepG2 cells. MethodsGlucose uptake was measured using the 2-NBDG fluorescent D-glucose analog. The phosphorylation levels of AMPK and GSK3β (Glycogen synthase kinase 3 beta) were observed by Western blotting. Molecular docking analysis was performed to evaluate the binding affinity of naringenin and naringin to the γ-subunit of AMPK. ResultsThe treatment with naringenin and naringin stimulated glucose uptake regardless of insulin stimulation in high glucose-treated HepG2 cells. Both flavonoids increased glucose uptake by promoting the phosphorylation of AMPK at Thr172 and increased the phosphorylation of GSK3β. Molecular docking analysis showed that both naringenin and naringin bind to the γ-subunit of AMPK with high binding affinities. In particular, naringin showed higher binding affinity than the true modulator, AMP with all three CBS domains (CBS1, 3, and 4) in the γ-subunit of AMPK. Therefore, both naringenin and naringin could be positive modulators of AMPK activation, which enhance glucose uptake regardless of insulin stimulation in high glucose-treated HepG2 cells. ConclusionsThe increased phosphorylation of AMPK at Thr172 by naringenin and naringin might enhance glucose uptake regardless of insulin stimulation in high glucose treated HepG2 cells. 相似文献
14.
本研究旨在通过高效液相色谱-质谱联用（LC-MS）和高效液相色谱（HPLC）技术对沙冬青种子总黄酮主要活性成分进行分析及含量测定,并探索沙冬青种子总黄酮对小鼠免疫功能的影响。采用LC-MS分析沙冬青种子总黄酮主要活性成分,在HPLC优化条件下用标准品对主要活性成分的含量进行测定;采用MTT法和ELISA试剂盒检测沙冬青种子总黄酮对小鼠脾淋巴细胞增殖和IL-2、IL-4生成的影响,以及总黄酮对肝脏KCs细胞的增殖和NO、NOS含量的影响;运用定量溶血分光光度法和血清溶血素HC 50测定法检测不同浓度沙冬青种子总黄酮对小鼠抗体生成细胞和血清溶血素的影响。结果显示,沙冬青种子总黄酮中主要活性成分为芒柄花素、7,3'-二羟基-4'-甲氧基黄酮、黄豆黄素和穗花杉双黄酮,其中,芒柄花素含量高达52.48%,其次为7,3'-二羟基-4'-甲氧基黄酮,含量为11.20%。在2.5~100 μg/mL总黄酮作用下,沙冬青种子总黄酮对脾淋巴细胞的增殖和细胞因子的产生具有明显的促进作用,尤其在20 μg/mL时脾淋巴细胞增殖率和IL-2的分泌量分别高达217.62%和159.661 pg/mL,与空白对照组相比差异极显著（ P<0.01）;在40 μg/mL时,脾淋巴细胞IL-4的分泌量高达149.274 pg/mL,极显著高于空白对照组（ P<0.01）。沙冬青种子总黄酮对KCs细胞的增殖及NO和NOS分泌也具有明显促进作用,在60 μg/mL时,与空白对照组相比,KCs细胞增殖率达67.77%,NO和NOS的分泌量分别达180.106和29.942 μmol/L（ P<0.01）。此外,沙冬青种子总黄酮能明显促进小鼠体内抗体生成细胞和血清溶血素含量的增加。综上表明,沙冬青种子总黄酮主要活性成分为芒柄花素和7,3'-二羟基-4'-甲氧基黄酮。沙冬青种子总黄酮对小鼠免疫活性细胞的增殖、相关免疫细胞因子和抗体的产生与释放等都具有显著的促进作用。 相似文献
15.
为优化枳实总黄酮的提取工艺，分别采用超声法和闪式提取法提取枳实总黄酮并比较。单因素试验考察提取溶剂浓度、料液比、时间和功率，正交试验优化最佳工艺。以枳实总黄酮(柚皮苷、新橙皮苷)提取率为指标，采用超快速液相色谱法测定枳实总黄酮含量以确定最佳提取方法。结果显示最佳工艺为：闪式提取法以50%乙醇为溶剂、料液比1∶70、提取3 min,提取率为18.65%。与超声法相比，闪式提取法省时、高效，更适合工业化生产，可为枳实在兽药领域的应用提供参考。 相似文献
16.
酸枣仁提取物是镇静安神的传统中药,其发挥生物学功能的主要成分是其中的皂苷和黄酮类。该提取物逐步受到中兽医的关注,在畜牧生产中有着广泛的开发利用前景。作者主要综述酸枣仁提取物对中枢神经系统、免疫系统及其在畜牧生产中应用的影响,为其在畜牧生产中的开发应用提供依据。 相似文献
17.
前期研究中运用大孔吸附树脂法对辣蓼黄酮进行分离纯化并对其抗氧化活性进行初步试验,获得令人满意的结果。为了获得质量稳定的辣蓼黄酮,为工业化生产中的质量控制提供实验依据,通过高效液相色谱法,以芦丁、槲皮素与槲皮苷为对照品对辣蓼总黄酮进行目标成分含量测定。结果表明,运用高效液相色谱法测定辣蓼黄酮乙酸乙酯部分(FEA)中芦丁、槲皮素与槲皮苷的含量分别为281.97、160.98、83.31 mg/g,辣蓼黄酮正丁醇部分(FNB)中芦丁、槲皮素与槲皮苷的含量分别为150.33、147.51、73.82 mg/g。该方法简单、准确、灵敏,精密度、重复性好,可作为辣蓼黄酮中芦丁、槲皮素与槲皮苷含量分析的参考方法。 相似文献
18.
柠檬苦素类化合物是一类高含氧的三萜类次生代谢产物,主要存在于芸香科和楝科植物中,部分柠檬苦素类化合物已被证实具有抗癌、抗菌、抗炎、昆虫拒食等生物活性,并作为高效低毒生物农药在农业生产中得到应用。本文主要对该类物质在芸香科和楝科植物中已报道的存在形式、生理功能和应用进行综述,并对其在柑橘抗病、副产物价值提升等方面的应用前景进行了展望。 相似文献
19.
蜂胶是一种用途十分广泛的蜂产品,其中的黄酮类化合物,品种多、含量丰富,具有防腐抗氧化、免疫增强和促进组织再生等生物学功效。针对蜂胶的功能特点,综述了蜂胶对家畜家禽生产性能及免疫机能的影响,并对蜂胶在畜牧业生产上的应用作了探讨。 相似文献
20.
BackgroundNaringenin and its glycoside naringin are well known citrus flavonoids with several therapeutic benefits. Although the anti-adipogenic effects of naringenin and naringin have been reported previously, the detailed mechanism underlying their anti-adipogenesis effects is poorly understood. ObjectivesThis study examined the anti-adipogenic effects of naringenin and naringin by determining differential gene expression patterns in these flavonoids-treated 3T3-L1 adipocytes. MethodsLipid accumulation and triglyceride (TG) content were determined by Oil red O staining and TG assay. Glucose uptake was measured using a 2-[N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl)amino]-2-deoxy-d-glucose fluorescent d-glucose analog. The phosphorylation levels of AMP-activated protein kinase (AMPK) and acetyl Co-A carboxylase (ACC) were observed via Western blot analysis. Differential gene expressions in 3T3-L1 adipocytes were evaluated via RNA sequencing analysis. ResultsNaringenin and naringin inhibited both lipid accumulation and TG content, increased phosphorylation levels of both AMPK and ACC and decreased the expression level of 3-hydroxy-3-methylglutaryl CoA reductase (HMGCR) in 3T3-L1 adipocytes. RNA sequencing analysis revealed that 32 up-regulated (> 2-fold) and 17 down-regulated (< 0.6-fold) genes related to lipid metabolism, including Acaca, Fasn, Scd1, Mogat1, Dgat, Lipin1, Cpt1a, and Lepr, were normalized to the control level in naringenin-treated adipocytes. In addition, 25 up-regulated (> 2-fold) and 25 down-regulated (< 0.6-fold) genes related to lipid metabolism, including Acaca, Fasn, Fabp5, Scd1, Srebf1, Hmgcs1, Cpt1c, Lepr, and Lrp1, were normalized to the control level by naringin. ConclusionsThe results indicate that naringenin and naringin have anti-adipogenic potentials that are achieved by normalizing the expression levels of lipid metabolism-related genes that were perturbed in differentiated 3T3-L1 cells. 相似文献
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