Benefits of Aronia melanocarpa Elliot in Eye Protection

This paper reviews the main benefits of Aronia melanocarpa Elliot for eye health,focusing on its antioxidant protection,prevention of visual deterioration,reduction of inflammation,improvement of blood circulation,protection of the retina,and immunity enhancement.Based on the existing studies,the application of A.melanocarpa Elliot in the field of eye health is promising and deserves further research and promotion.

Green Hydrothermal Synthesis and Applications of Sorbus pohuashanensis/Aronia melanocarpa Extracts Functionalized-Au/Ag/AuAg Nanoparticles

Nanoparticles(NPs)have already been widely used in catalysis,antibacterial and coating fields.Compared with the traditional toxic and harmful reducing reagents,green synthesis of NPs by using plant extracts is not only environmental-friendly and cost-effective but also conducive to the multi-level and efficient utilization of wild plant resources.In this study,the aqueous extracts from Sorbus pohuashanensis(SP)and Aronia melanocarpa(AM)fruits were used as the reducing and protective reagents for synthesizing Au/AgNPs,with the characteristics of originality operation and high repeatability.The SP/AM fruit extracts functionalized Au/AgNPs were characterized by UV-vis spectroscopy(UV-vis),transmission electron microscopy(TEM),energy dispersive spectroscopy(EDS),scanning electron microscope(SEM),X-ray diffraction(XRD)and Fourier transform infrared spectroscopy(FTIR).UV-vis spectrums showed the NPs peaks verified by the presence between 400–550 nm;TEM and SEM demonstrated NPs displayed approximately spherical structures;EDS confirmed the existence of Au/Ag elements;XRD measurements confirmed that the obtained NPs showed highly crystalline structures;FTIR demonstrated the fruits extracts were adsorbed on the surface of NPs.Primary experiments indicated that SP/AM fruit extracts functionalized-NPs could be used as the reagents for removing the organic dyes efficiently;Zone of inhibition tests(ZOI)explained that NPs have slow-release antibacterial activity.

Polyphenols extracted from Aronia melanocarpa by combined enzymatic and ultrasonication and their antioxidant potential and antimicrobial activity

The extraction of polyphenols from Aronia melanocarpa was carried out using a combination of enzymatic and ultrasound.After single-factor and orthogonal design and experiment,the optimized polyphenol extraction conditions were 1%enzyme,1:40 material-to-liquid ratio,55℃,60 min ultrasonication,70%ethanol,and the final extraction amount was 88.634 mg/g,which displayed a 25.15%and 34.08%improvement compared with the single ultrasonication and enzymatic extraction methods,respectively.Significant antibacterial effects of polyphenols were shown against Staphylococcus aureus,Escherichia coli and Bacillus subtilis.Further antioxidation effects were evaluated,and the superoxide anion radical scavenging rate,hydroxyl radical scavenging rate and DPPH free radical scavenging rate reached 45.2%,83.5%and 85.4%,respectively.This combined enzymatic and ultrasonic extraction method exhibited the advantages of high extraction rate,saving solvent consumption and extraction time,but also provided a new method for the development and utilization of natural antimicrobial and antioxidant health products.

Comparison of Morphological Microstructure of Vitrified and Normal Shoots of Aronia melanocarpa Elloit

The Aronia melanocarpa El oit was used as test material. The microstruc-ture of normal and vitrified shoots and the characteristics of their stomas on leaf surface were compared by paraffin section and leaf epidermis-tearing method. The results showed the palisade tissue of Aronia melanocarpa El oit consists of 2-3 lay-ers of cells. The stomas on lower epidermis cave in, and are smal and dense. There are abundant vessels and sieve tubes in stems. ln contrast, the main veins of vitrified shoots are unobvious, messy and irregular. The boundary between pal-isade tissue and spongy tissue is not obvious. The stomas open circularly and bigly. The stems are swel ing and thick, but the pith parenchyma cells are broken.

Introduction Performance of Aornia melanocarpa in 4 Districts of Tianjin

[Objectives]To enrich the species resources of Tianjin,Aornia melanocarpa was introduced and cultivated in 4 districts of Tianjin.[Methods]Two consecutive years of observation in 2018-2019 and research on the phenological period,high yield and fruit economic traits in 4 districts of Tianjin were carried out.[Results]The A.melanocarpa of the Linhai Jiayuan Experimental Site in Jinghai District has larger single fruit weight,higher nutrient composition,stronger plant growth,higher yield and storage stability,so this site can be used as a main planting base for large-scale planting of A.melanocarpa;the experimental site of Tianjin Agricultural University East Campus and the experimental site of Cuiping Lake Science Park of Jizhou District have a sour and astringent taste but relatively low yield,need to be processed as by-products in combination with market prices to determine whether to plant;the experimental site of Tianjin Agricultural University West Campus has low yield,small fruit and poor taste,and the planting effect is the worst among the four experimental sites.[Conclusions]From the overall economic traits of fruits,the fruits produced in the experimental site of Jinghai District have sufficient weight,high solid-acid ratio,and relatively high nutrient content,thus this experimental site can be used as large-scale cultivation base for A.melanocarpa.

不同陈酿容器及陈酿时间对黑果腺肋花楸(Aronia melanocarpa(Michx.)Elliott)酒单体酚及抗氧化性的影响

采用3种不同陈酿容器(不锈钢罐、中国橡木桶和法国橡木桶)对黑果腺肋花楸酒进行陈酿,通过分析陈酿过程中样品单体酚和抗氧化能力(ABTS、DPPH、FRAP)的变化,研究不同陈酿容器及陈酿时间对酒的抗氧化性的影响。结果表明,随着陈酿时间的延长,3组样品的总酚和总花色苷含量不断降低,其中总酚含量分别降低了14.53%、27.67%和25.89%;总花色苷含量分别降低了58%、71%和74%。抗氧化能力的变化与总酚、总花色苷含量的变化趋势相似,同样随着储存时间的延长不断降低,ABTS总抗氧化能力分别降低了17.16%、30.83%和24.78%;DPPH自由基清除能力分别降低了18.31%、25.35%和22.54%;FRAP还原铁能力分别降低了60.15%、74.05%和52.80%。相关性分析结果表明,总酚、总花色苷、ABTS、DPPH和FRAP两两呈正相关。绿原酸、表儿茶素和芦丁随着陈酿时间的延长,含量不断降低;鞣花酸和原儿茶酸则随着陈酿时间的延长,含量不断上升。该研究不仅为深入研究黑果腺肋花楸酒陈酿过程中的抗氧化变化机理提供了理论基础,而且对黑果腺肋花楸酒陈酿过程的调控也具有良好的实践意义。

Determination of total flavonoids and its antioxidant activity in the exocarp of Aronia melanocarpa

As a kind of berry food rich in flavonoids,the determination method of total flavonoids content of Aronia melanocarpa is of great significance.This paper compares the applicability of NaNO_(2)-Al(NO_(3))_(3)-NaOH colorimetry and AlCl_(3)colorimetry to total flavonoids content of the exocarp of Aronia melanocarpa by Ultraviolet-visible Spectrophotometry.At the same time,we determined hydroxyl radical(OH·-)inhibition rate,superoxide anion radical(O_(2)·-)inhibition rate and 1,1-diphenyl-2-picrylhydrazyl radical free radical(DPPH·)scavenging rate of total flavonoids extracted from Aronia melanocarpa.It is found that AlCl_(3)colorimetry has good repeatability,precision,and accuracy.The method is suitable for the determination of total flavonoids in the exocarp of Aronia melanocarpa.Thus,by the established method the content of total flavonoids in the exocarp of Aronia melanocarpa was determined as high as(36.711±0.034)mg/g.The results of antioxidant activity showed superoxide anion radical scavenging ability,hydroxyl radical scavenging ability and DPPH radical scavenging ability of the total flavonoids extract reached 45.33%,87.87%and 98.05%,respectively,indicating that it had good antioxidant activity.

Optimization of ultrasonic-assisted enzymatic extraction of flavonoids from the fruit oiAronia melanocarpa

As a new resource food,Aronia melanocarpa is rich in flavonoids,which has a broad development prospect.In order to obtain a higher extraction rate of flavonoids,cellulase was used to extract total flavonoids from the fruits of Aronia melanocarpa by ultrasonic-assisted enzymatic extraction(UAEE).The extraction process was optimized by single factor experiment and orthogonal experiment.The optimum conditions were as follows:enzymatic hydrolysis time 2.0 h,enzymatic hydrolysis temperature 37℃,enzyme content 0.5%(by weight of fruit pulp),ethanol concentration 90%,solid-liquid ratio 1:20,enzymatic hydrolysis temperature 37℃,enzymatic hydrolysis temperature 37℃,enzyme content 0.5%(by weight of fruit pulp),ethanol concentration 90%.Ultrasonic extraction time 1,0h,temperature 45℃.Under the above conditions,the extraction yield of flavonoids reached 1.455 mg/g.Compared with ultrasonic-assisted extraction(UAE),the extraction yield was significantly improved.Therefore,ultrasonic-assisted enzymatic hydrolysis is an effective method for the extraction of total flavonoids hom Aronia melanocarpa.

黑果腺肋花楸苗木对土壤干旱的光合及生理响应

【目的】探究黑果腺肋花楸在自然土壤干旱条件下的光合及其生理生化特性。【方法】以3年生的黑果腺肋花楸盆栽苗木为试材,通过持续干旱处理,观测苗木叶片的水分参数、光合及叶绿素荧光参数、保护酶活性和渗透调节物质含量等指标的动态变化规律,并对这些生理参数进行相关性和主成分分析。【结果】在自然干旱的过程中,叶片相对含水量(RWC)显著降低,而水分饱和亏(WSD)显著增加;光合色素包括Chl a、Car和总叶绿素含量随着土壤含水量的降低呈先上升后下降的趋势。在初期阶段,当土壤含水量由田间持水量80%~75%(CK)下降至40%~35%(T3)时,黑果腺肋花楸苗叶片的净光合速率(P_(n))、气孔导度(G_(s))和蒸腾速率(Tr)呈逐渐降低的趋势;而水分利用效率(WUE)则显著提高;PSⅡ最大光化学效率(F_(v)/F_(m))与对照组无显著差异。随着土壤干旱程度加剧,P_(n)、G_(s)、T_(r)和F_(v)/F_(m)下降幅度越大,而C_(i)上升显著。通过观察叶片P_(n)、G_(s)、C_(i)和F_(v)/F_(m)的变化趋势和相关性分析,在干旱前、中期影响黑果腺肋花楸光合特性的主要因素是气孔限制,在后期则出现非气孔限制。随着干旱的加剧,叶片的质膜受损,电解质外渗率显著增加;丙二醛和H2O2含量以及超氧化物歧化酶、过氧化物酶和过氧化氢酶活性呈先上升后下降的趋势;同时,渗透调节物质含量也逐渐增加。综合分析各指标之间的相关性发现,不仅各个参数内部存在显著相关性,而且水分、光合参数、保护酶活性和渗透调节物质指标之间也存在重要关联。【结论】综合考虑测定指标的主成分分析和评价结果,黑果腺肋花楸在面临持续干旱胁迫时,会迅速降低气孔导度以减少水分散失并提高水分利用效率,会通过提高部分光合色素含量维持光合结构PSⅡ的正常功能以应对干旱环境。同时,在干旱胁迫下,它能通过调节自身保护酶活性及增加渗透调节物质含量来缓解干旱胁迫造成的伤害,表现出较强的适应干旱逆境的能力。

FTIR结合ELM对黑果腺肋花楸黄酮、多糖含量快速预测

黑果腺肋花楸是继蓝莓后的又一小浆果,因其黄酮含量高于蓝莓受到关注,已获进入新资源食品名单,并在饮料行业中使用。黑果腺肋花楸黄酮、多糖是其果汁及果渣中的主要生物活性成分,也是影响其品质的重要因素。以中红外光谱技术结合化学计量学方法对黑果腺肋花楸黄酮、多糖含量进行预测,为建立简便、快捷的黑果腺肋花楸产品质量检测方法提供基础。采集15个产区共750份黑果腺肋花楸红外光谱数据,测量每份样品黄酮、多糖含量,采用K-S样本划分法按4∶1的比例将样本划分为校正集和验证集,并对分组后的光谱信息进行多元散射校正(MSC)、标准正态化(SNV)、平滑(SG)、一阶导数(FD)、二阶导数(SD)等光谱预处理,与原始光谱进行极限学习机(ELM)建模预测效果对比,确定最佳光谱预处理方法。采用竞争性自适应重加权算法(CARS)和连续投影算法(SPA)进行黑果腺肋花楸黄酮、多糖特征光谱波段选取,将2种方法选取的光谱数据结合偏最小二乘回归法(PLS)、极限学习机(ELM)、支持向量机(SVM)进行建模对比,选出预测效果最佳的算法模型。结果表明,7种光谱预处理方法中,MSC对原始光谱的处理效果最佳,在此处理下黄酮含量预测模型RPD值为6.2017,多糖含量预测模型RPD值为5.4473,预测模型的误差显著下降。经CARS、SPA提取特征光谱后,进行3种算法的建模结果对比,确定CARS-ELM为效果最佳的含量预测模型,其中黄酮含量预测模型的R_(C)为0.9972,RMSEC为0.0175,R_(P)为0.9912,RMSEP为0.0311,RPD为10.6315;而多糖含量预测模型中的R_(C)为0.9965,RMSEC为0.0173,R_(P)为0.9867,RMSEP为0.0337,RPD为8.6647。中红外光谱结合化学计量学方法,尤其是CARS-ELM模型能够更准确地对黑果腺肋花楸黄酮、多糖含量进行预测,此方法的开发为黑果腺肋花楸质量评价提供了快速、简便的方法。

红外光谱的不同产地黑果腺肋花楸果实鉴别

黑果腺肋花楸是已被列入新食品原料名单中的小浆果,富含花青素等成分,在酒类、饮料、功能食品、化妆品等领域广泛应用,具有较高的经济价值。因受不同产地气候等环境因素及种植条件的影响,黑果腺肋花楸果实品质差异明显。为规范黑果腺肋花楸果品市场管理,以中红外光谱技术结合化学计量学方法对不同产地黑果腺肋花楸果实进行鉴别。采集15个产区共750份黑果腺肋花楸果实红外光谱数据,采用K-S样本划分法,按4∶1比例将样本划分为训练集和测试集,并进行多元散射校正(MSC)、标准正态化(SNV)、移动平滑(SG)、一阶导数(FD)、二阶导数(SD)等光谱预处理,与原始光谱进行支持向量机(SVM)建模识别效果对比,确定最佳光谱预处理方法,同时对最佳光谱数据进行归一化处理。采用竞争性自适应重加权算法(CARS)和连续投影算法(SPA)提取光谱特征信息,并结合随机森林(RF)、极限学习机(ELM)、支持向量机(SVM)、偏最小二乘-判别分析(PLA-DA)进行建模对比,确定最佳模型。结果表明,MSC为最佳光谱预处理方法,MSC-SVM训练集识别率为93.33%,测试集识别率为92.67%,能有效减少光谱采集时产生的随机误差。经CARS、SPA提取MSC特征光谱波长,进行4种算法的建模结果对比,确定SPA-SVM模型为最佳识别模型,其训练集与测试集识别率均为100%,且仅需16个波长点即可完成准确识别。红外光谱结合化学计量学方法,尤其是SPA-SVM模型,可准确鉴别黑果腺肋花楸果实产地,为黑果腺肋花楸果实产地溯源、质量评价提供快速、简便的方法支撑,为打造地区特色品牌提供技术基础。

基于天眼查大数据的黑果腺肋花楸产业发展现状分析

黑果腺肋花楸由于其独特的风味、极高的营养价值及保健功能,具有较大的开发利用前景。为填补黑果腺肋花楸产业在中国市场调研不完全的空缺,推动中国黑果腺肋花楸产业的发展,该文通过天眼查大数据检索黑果腺肋花楸相关企业。结果显示近20年我国从事黑果腺肋花楸产业的市场主体数量逐年增长,2016、2018年分别到达增长高峰。从空间分布来看,辽宁(32.89%)、吉林(18.86%)、山东(16.23%)是其主要经营地区。大多数企业(55%)注册资本集中于500万以下,拥有商标(26.64%)、专利(10.48%)的黑果花楸企业占少数。截止2022年全国共有178家黑果腺肋花楸企业处于存续和正常运营状态,注销、吊销、撤销和解散的共有50家,目前产业面临的问题主要有品种和栽培模式较为单一、产品精深加工水平不高以及知名度品牌效应不足。目前我国黑果腺肋花楸产业仍处于起步阶段,应呼吁企业种植、加工、销售一体化,丰富产品品类,开发新产品,建设头部领军企业,完善相关产业建立。

黑果腺肋花楸扦插生根特性及不定根发生模式研究

【目的】为了解黑果腺肋花楸扦插不定根起源及发育过程,揭示其扦插生根机理。【方法】以‘福康源1号’当年生半木质化插穗为研究材料,利用水培扦插技术和石蜡切片法对不定根形成过程中插穗内部组织结构及外部形态的变化规律进行观察。【结果】在水培条件下,IBA处理扦插生根期为30~40 d,扦插过程中皮孔处在10~15 d出现不定根,插穗切口处在15~20 d出现不定根,生根速度、不定根数量及根长均优于对照,外源诱导可显著提高生根率和生根质量。扦插前的插穗内无潜伏根原基存在,不定根原基在插后形成;不定根形成为愈伤组织生根型和内部分生组织生根型。皮部产生的不定根起源于维管形成层、韧皮薄壁细胞或皮层;愈伤组织产生的不定根是由愈伤组织内的薄壁细胞团特化而成;叶隙或枝隙是形成不定根原基和产生愈伤组织的主要区域。【结论】扦插生根属于多位点发生模式,属于诱导生根型。

中红外光谱对黑果腺肋花楸中多酚含量的定量检测

黑果腺肋花楸是富含多酚类物质的蔷薇科浆果。多酚是黑果腺肋花楸的主要化学成分,包括花青苷、黄酮苷、单宁等,具有抗氧化、抑菌、抗肿瘤、抗炎、减肥及调节血糖、血脂等药理活性。黑果腺肋花楸现已进入新食品原料名单。黑果腺肋花楸多酚含量与其功效价值关系密切,因此黑果腺肋花楸多酚含量检测方法的完善对规范黑果腺肋花楸原料及产品市场至关重要。现行检测方法操作繁琐、用时长,难以满足黑果腺肋花楸进入新食品原料名单后的产业发展需求,亟待开发快速测定多酚含量的方法。使用中红外光谱技术,建立了一种黑果腺肋花楸多酚含量快速定量检测方法。采集15个地区共750份黑果腺肋花楸红外光谱数据,进行光谱解析并测量每份样品的多酚含量;采用K-S样本划分法按4∶1的比例将样本划分为校正集和验证集;对分组后的光谱信息进行多元散射校正(MSC)、标准正态化(SNV)、平滑(SG)、一阶导数(FD)、二阶导数(SD)等光谱预处理,与原始光谱进行随机森林回归(RFR)建模预测效果对比,确定最佳光谱预处理方法为MSC。采用竞争性自适应重加权算法(CARS)和连续投影算法(SPA)选取黑果腺肋花楸多酚最优特征光谱波长,将两种方法选取的光谱数据结合随机森林回归(RFR)、偏最小二乘回归法(PLSR)、极限学习机(ELM)、支持向量机回归(SVR)进行建模对比,确定最佳算法模型。结果表明,CARS算法可有效减少红外光谱数据冗余,提高模型预测的精确性与稳定性;CARS-RFR模型具有最佳预测性能,其校正集Rc为0.9865,RMSEC为0.0732,验证集Rp为0.9743,RMSEP为0.1006,RPD为6.2356。结果表明,中红外光谱技术与化学计量学方法的结合,特别是CARS-RFR模型能够高效、快速、准确地实现黑果腺肋花楸多酚含量的检测,研究结果可为快速测定黑果腺肋花楸多酚含量提供技术支持。

黑果腺肋花楸保健功能及其果酒研究进展

文章以近年来国内外研究黑果腺肋花楸的成果为基础,对黑果腺肋花楸的保健功能及其果酒研发进行了综述,重点阐述了花楸果酒的类型及工艺研究进展,并分析了当前花楸果酒研发所面临的挑战与机遇。

黑果腺肋花楸花生粕乳饮料复配稳定剂制备工艺优化

以黑果腺肋花楸和花生粕为原料,研制一款黑果腺肋花楸花生粕乳饮料,并探究最佳稳定剂种类和添加量对其稳定性能的影响。通过单因素试验、L(934)正交试验和Box⁃Behnken设计法优化乳饮料基础配方和稳定性工艺,通过粒径和流变分析法分析产品稳定效果。结果表明:以77.75%花生粕乳液、13%黑果腺肋花楸汁、9%白砂糖、0.25%柠檬酸调配成的乳饮料风味最优;响应面试验结果表明,羧甲基纤维素钠、海藻酸钠和阿拉伯胶复配稳定剂的添加量分别为0.19%、0.27%、0.15%时,产品沉淀率最小,为0.24%。粒径、流变结果证实,复配稳定剂可使乳饮料粒径分布在最小范围(0.1~80µm)且黏度低于3种单一稳定剂。黑果腺肋花楸花生粕乳饮料乳香浓郁且兼具黑果腺肋花楸风味,口感酸甜适中,成品呈现乳粉色,状态良好且口感清爽。

体外模拟胃肠消化过程中黑果腺肋花楸果提取物活性成分及其抗氧化作用变化规律

通过体外模拟,探究黑果腺肋花楸果提取物胃肠消化过程中的活性成分及抗氧化作用变化规律。采用紫外分光光度法测定黑果腺肋花楸果提取物口腔消化液、胃消化液、肠消化液、肠透析液以及黑果腺肋花楸果提取物溶液5种样品中总黄酮、多酚、花青素、原花青素含量变化;同时,检测5种样品对羟基自由基、DPPH自由基、ABTS+自由基、超氧阴离子自由基的清除能力。结果表明:黑果腺肋花楸果提取物中原花青素含量最高,为(333.86±3.46)mg/g,其次是多酚,花青素含量最少。在模拟消化过程中活性成分变化趋势存在差异,花青素含量在口腔消化液中最多,肠消化液次之,胃消化液和肠透析液中较少;原花青素在口腔消化液中最多,胃消化液中减少,肠消化液和肠透析液中消失。多酚在肠消化液中含量最高,口腔和胃消化液中差距不大,肠透析液中明显减少。模拟消化液清除羟基自由基、DPPH自由基的变化趋势相似,其中口腔消化液抗氧化能力最强(清除羟基自由基IC50值为71μL,强于维生素C,清除DPPH自由基IC50值为13.7μL,弱于维生素C),肠消化液抗氧化能力最弱,而清除ABTS+自由基能力的结果略有不同,清除超氧阴离子自由基的能力有待进一步研究。通过研究结果可以看出黑果腺肋花楸果提取物消化产物具有潜在的抗氧化活性,并与相关活性成分含量具有一定相关性。

壳聚糖-黑果腺肋花楸多酚复合涂膜的制备及性能研究

目的制备壳聚糖(Chitosan,CS)-黑果腺肋花楸多酚(Aronia Melanocarpa Polyphenol,AMP)复合涂膜,以延长冷鲜猪肉的储存期。方法采用交联法制备一种复合涂膜,通过单因素试验探讨不同CS、柠檬酸和AMP质量分数对复合涂膜的成膜时间、水蒸气透过率、透光率和黏聚性的影响,并比较不同复合涂膜的抑菌性能及对冷藏猪肉的保鲜效果。结果CS-AMP复合涂膜的最佳添加比例:壳聚糖为2.20%、柠檬酸为4.20%、AMP为0.18%。按此条件所制得复合涂膜,成膜时间短、水蒸气透过率低、透光率及黏聚性较高,其成膜时间为(4.37±0.52)min、水蒸气透过率为(9.38±0.45)g/(m^(2)·24h)、透光率为(90.20±0.35)%、黏聚性为(1.33±0.15)Pa·s。通过抑菌实验发现,复合涂膜对大肠杆菌的抑制作用达到(12.49±0.25)mm,对金黄色葡萄球菌的抑制作用达到(11.61±0.52)mm。通过冷藏肉保鲜试验发现,加入AMP后,复合涂膜的抑菌效果更明显,显著抑制了猪肉中微生物的繁殖。结论AMP达到一定质量分数时能够改善其成膜时间、水蒸气透过率、透光率和黏聚性,并延迟猪肉腐败。CS-AMP复合涂膜潜在的应用价值为食品包装材料的进一步研究提供了依据。

黑果腺肋花楸果中多种活性成分同时纯化及体外活性研究

研究大孔树脂对黑果腺肋花楸果中多种活性成分同时纯化工艺条件及各组分进行体外活性,并考察在体外模拟胃肠条件下总皂苷的释放量。采用静态、动态的吸附与解吸方法进行纯化工艺研究,采用UVVis进行各组分的体外活性研究。最佳纯化工艺条件为:LSA-10大孔树脂,生药浓度48.0 mg/mL,吸附流速1.0 mL/min,洗脱流速1.5 mL/min。通过水、20%和80%乙醇水溶液的洗脱得到多组分。纯化后干浸膏中多糖、花色苷、总黄酮和总皂苷的含量分别为615.20、127.55、48.97、797.49 mg/g。体外活性实验表明各组分均具有不同活性的IC50值。该工艺条件下的大孔树脂可以同时有效纯化多种活性成分,所得各组分均具有不同的体外活性,胃肠消化酶可促进总皂苷释放量。本研究为黑果腺肋花楸果的开发利用提供了数据参考。

基于UPLC-Orbitrap-MS/MS技术联合GNPS分子网络快速分析黑果腺肋花楸果实成分

本研究建立了超高效液相色谱-轨道阱串联质谱(UPLC-Qrbitrap-MS/MS)技术联合GNPS分子网络快速分析黑果腺肋花楸果实成分。在正、负离子模式下,采集黑果腺肋花楸果实提取物的高分辨质谱数据,总结串联质谱信息和碎裂规律,依据特征裂解规律的相似性创建分子网络。根据对照品的保留时间、精确相对分子质量及碎片离子等,对黑果腺肋花楸果实成分进行归属和鉴定。创建了花色苷类、原花青素类、黄酮类和有机酸类的分子网络,共鉴定出黑果腺肋花楸果实中42个成分,包括20个花色苷类、3个原花青素类、12个黄酮类和7个有机酸类。该方法能够快速、准确归类并鉴定黑果腺肋花楸果实成分,为其功效物质基础研究及开发利用提供了依据。