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  • 文章类型: Journal Article
    背景:古代经典方剂在中医(TCM)理论的保存和发展中起着至关重要的作用。它们代表了中医药知识和实践的持续发展和传播的重要里程碑,被认为是中医药传承发展的突破之一。在发展古代经典方剂的过程中,在确保传统方法和现代生产过程之间的质量一致性方面可能仍然会出现许多问题,其中提取过程提出了重大挑战。本文介绍了一种使用现代提取工艺提取古代经典处方的实用方法。通过对神寿太一粉(STP)提取工艺的研究,论证了该工艺。
    方法:本研究的重点是优化STP提取过程,以确保通过使用标准关系和模糊层次分析法(FAHP)和重要性标准通过标准间相关性(CRITIC)方法集成权重结合Box-Behnken响应面测试,通过古代和现代工艺获得的产品质量的一致性。使用迷迭香酸的含量,异欧前胡素,葛根素,以提取物得率和指纹图谱相似度作为STP的评价指标,采用Box-Behnken响应面法检查了不同的提取参数,包括水添加比,提取持续时间,和提取次数。通过结合基准相关性和FAHP-CRITIC方法计算每个参数的加权系数,得出一个综合评分。
    结果:STP的最佳提取工艺包括两次提取,每次使用十倍量的水,表演了一个小时。三个单独批次的过程验证得出的综合评分为94.7,相对标准偏差为0.76%。
    结论:应用Box-Behnken响应面法结合标准关系法和FAHP-CRITIC方法对优化STP的提取工艺是稳定可行的。
    BACKGROUND: Ancient classic prescription play a crucial role in the preservation and advancement of traditional Chinese medicine (TCM) theories. They represent a significant milestone in the ongoing development and transmission of TCM knowledge and practices and are considered one of the breakthroughs in the development of TCM inheritance. In the process of developing ancient classic prescriptions, many problems may still arise in ensuring quality consistency between traditional methods and modern production processes, among which the extraction process poses major challenges. This paper introduces a practical approach extracting an ancient classic prescription using a modern extraction process. The technique is demonstrated through the study of the extraction process of Shenshou Taiyi powder (STP).
    METHODS: This study focuses on optimising the STP extraction process to ensure consistency in the quality of the product obtained through ancient and modern processes using the standard relation and fuzzy analytic hierarchical process (FAHP) and criteria importance through intercriteria correlation (CRITIC) method integrated weights combined with the Box-Behnken response surface test. Using the contents of rosmarinic acid, isoimperatorin, puerarin, as well as the extract yield and fingerprint similarity as evaluation indexes of STP, the Box-Behnken response surface method was employed to examine the varying extraction parameters, including water addition ratio, extraction duration, and number of extractions. The weighted coefficients for each parameter were calculated by combining the benchmark correlation and FAHP-CRITIC method, deriving a comprehensive score.
    RESULTS: The optimal extraction process for STP consisted of a two extractions, each using at a tenfold quantity of water, performed for one hour. Process verification across three separate batches yielded a comprehensive score of 94.7, with a relative standard deviation of 0.76%.
    CONCLUSIONS: The application of the Box-Behnken response surface method combined with standard relation and FAHP-CRITIC approach proved to be stable and feasible for optimising the extraction process of STP.
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  • 文章类型: Journal Article
    由于老龄化人口的快速增长和吞咽困难的流行,开发用于吞咽困难的增稠粉末势在必行。可用于配制吞咽困难饮食的一种有前途的增稠剂是罗勒种子粘液(BSM)。这项工作调查了分散介质的影响,包括水,牛奶,脱脂牛奶,苹果汁,关于BSM增稠液体的流变和摩擦学性能。剪切流变学结果表明,BSM在这些介质中的增稠能力按升序排列为牛奶<脱脂奶≈苹果汁<水。另一方面,拉伸流变学表明,当BSM溶解在牛奶中时,观察到最长的长丝断裂时间,其次是脱脂牛奶,水,和苹果汁。此外,摩擦学测量显示不同的润滑行为,取决于BSM浓度和分散介质。与其他分散介质相比,BSM在苹果汁中的溶解导致最优异的润滑性能。总的来说,这项研究提供了BSM作为一种新型胶基增稠粉末在一系列饮料中的应用的见解,并强调了消费者在吞咽困难管理中使用BSM的明确指导是多么重要.
    The development of thickening powders for the management of dysphagia is imperative due to the rapid growth of aging population and prevalence of the dysphagia. One promising thickening agent that can be used to formulate dysphagia diets is basil seed mucilage (BSM). This work investigates the effects of dispersing media, including water, milk, skim milk, and apple juice, on the rheological and tribological properties of the BSM-thickened liquids. Shear rheology results revealed that the thickening ability of BSM in these media in ascending order is milk < skim milk ≈ apple juice < water. On the other hand, extensional rheology demonstrated that the longest filament breakup time was observed when BSM was dissolved in milk, followed by skim milk, water, and apple juice. Furthermore, tribological measurements showed varying lubrication behavior, depending on the BSM concentration and dispersing media. Dissolution of BSM in apple juice resulted in the most superior lubrication property compared with that in other dispersing media. Overall, this study provides insights on BSM\'s application as a novel gum-based thickening powder in a range of beverages and emphasizes how important it is for consumers to have clear guidance for the use of BSM in dysphagia management.
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  • 文章类型: Journal Article
    家蚕(Bombyxmori)幼虫有望用作昆虫吞噬的成分。它们充满了营养,包括不可消化的蛋白质;然而,关于食用整个家蚕对肠道菌群的影响的研究很少。我们准备了含有家蚕幼虫粉(SLP)的定制饮食,并研究了随意饲喂SLP饮食对小鼠肠道菌群和短链脂肪酸(SCFA)含量的影响。我们发现,饲喂SLP饮食(SLP组)的小鼠盲肠和粪便微生物群的多样性增加,它们的肠道微生物群的组成与对照小鼠的不同。此外,属水平的微生物群分析表明,在SLP组中,Alistipes的比例,LachnoshileaeA2和RF39,与预防肥胖有关,显着增加,而螺杆菌和厌氧菌的比例,与肥胖有关,显着下降。此外,SLP组丁酸水平升高,和梭菌UCG014和LachnospiphaceaeFCS020被发现与丁酸的水平有关,主要的SCFA之一。这些发现表明,蚕粉可以用作昆虫食品,也可以改善肥胖。
    Silkworm (Bombyx mori) larvae are expected to be useful as an ingredient in entomophagy. They are full of nutrients, including indigestible proteins; however, there have been few studies on the effects of the consumption of the entire body of silkworms on the intestinal microflora. We prepared a customized diet containing silkworm larval powder (SLP), and investigated the effects of ad libitum feeding of the SLP diet on the intestinal microbiota and the amount of short-chain fatty acids (SCFAs) in mice. We found that the diversity of the cecal and fecal microbiota increased in the mice fed the SLP diet (SLP group), and that the composition of their intestinal microbiota differed from that of the control mice. Furthermore, a genus-level microbiota analysis showed that in the SLP group, the proportions of Alistipes, Lachnospiraceae A2, and RF39, which are associated with the prevention of obesity, were significantly increased, while the proportions of Helicobacter and Anaerotruncus, which are associated with obesity, were significantly decreased. Additionally, the level of butyrate was increased in the SLP group, and Clostridia UCG 014 and Lachnospiraceae FCS020 were found to be associated with the level of butyrate, one of the major SCFAs. These findings indicated that silkworm powder may be useful as an insect food that might also improve obesity.
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  • 文章类型: Journal Article
    为了在药物产品开发的早期临床阶段引入一种具有成本效益的商业规模干法制粒策略方法,我们使用不含API的配方开发了干法制粒工艺,采用实验设计(DOE)对工艺参数进行了拟合和优化。然后,使用一种含有活性药物成分(API)的制剂确认工艺参数。结果表明,辊压力对颗粒比有显著影响(保留到#60目筛),堆积密度和振实密度。辊隙对颗粒比和比能有显著影响。颗粒比显著受磨机速度(第二水平)影响。在干法制粒之后,粉末的可压性降低。硬脂酸镁对可压性的影响是显著的。在过程验证研究中,制备的颗粒的性质满足DOE中研究的每个反应的要求。制备的片剂显示出更高的拉伸强度,填充胶囊的含量均匀性好,其溶出曲线与临床产品一致。该药物产品工艺开发和研究策略可作为早期临床阶段干法制粒工艺的初步实验。
    In order to introduce a cost-effective strategy method for commercial scale dry granulation at the early clinical stage of drug product development, we developed dry granulation process using formulation without API, fitted and optimized the process parameters adopted Design of Experiment (DOE). Then, the process parameters were confirmed using one formulation containing active pharmaceutical ingredient (API). The results showed that the roller pressure had significant effect on particle ratio (retained up to #60 mesh screen), bulk density and tapped density. The roller gap had significant influence on particle ratio and specific energy. The particle ratio was significantly affected by the mill speed (second level). The tabletability of the powder decreased after dry granulation. The effect of magnesium stearate on the tabletability was significant. In the process validation study, the properties of the prepared granules met the requirements for each response studied in the DOE. The prepared tablets showed higher tensile strength, good content uniformity of filled capsules, and the dissolution profiles of which were consistent with that of clinical products. This drug product process development and research strategies could be used as a preliminary experiment for the dry granulation process in the early clinical stage.
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  • 文章类型: Journal Article
    在加工过程中,在海参粉中检测到40多种挥发性化合物(通过冷冻干燥,海水淡化,超临界流体萃取和超微研磨)通过包括电子鼻在内的多种方法,GC-IMS和GC-MS。已经确定醛是原始冻干样品中的主要挥发性物质,约占总挥发性物质的30%。此外,我们建立了一种超临界流体萃取策略,可以有效地去除海参粉末中的醛。GC-IMS和GC-MS表明醛的相对含量显著降低了14%和28%,分别。使用GC-MS定量醛显示辛醛从927μg/kg显著降低至159μg/kg。进一步的调查结合OAV分析显示,冻干海参粉中的17种挥发性物质被认为是主要的挥发性化合物(OAV>1)。在海参粉末中发现的主要鱼腥味化合物被鉴定为己醛,octanal,和使用GC-O的身份不明的化合物,通过我们建立的超临界流体萃取策略可以有效地去除(OAV无法估计)。
    More than 40 volatile compounds were detected in sea cucumber powder during the processing (through freeze-dried, desalination, supercritical fluid extraction and ultra-micro grinding) by multiple methods including e-nose, GC-IMS and GC-MS. It has been determined that aldehydes are the predominant volatile substances in the original freeze-dried sample, accounting for about 30 % of the total volatile substances. In addition, we established a supercritical fluid extraction strategy that could efficiently remove the aldehydes from the sea cucumber powder. GC-IMS and GC-MS showed that the relative content of aldehydes significantly decreased by 14 % and 28 %, respectively. Quantification of aldehydes using GC-MS showed a significant decrease in octanal from 927 µg/kg to 159 µg/kg. Further investigation combined with OAV analysis showed that 17 volatile substances in the freeze-dried sea cucumber powder were considered to be the predominant volatile compounds (OAV > 1).The primary fishy compounds found in sea cucumber powder were identified as hexanal, octanal, and an unidentified compound using GC-O, which can be effectively removed (OAV can\'t been estimated) by the supercritical fluid extraction strategy we established.
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  • 文章类型: Journal Article
    氧连素(OBB)是一种重要的天然化合物,具有优良的保肝性能。然而,OBB的水溶性差阻碍其释放和吸收,从而导致低生物利用度。为了克服OBB的这些缺点,配制OBB的无定形喷雾干燥粉末(ASDs)。解散,表征,研究了OBB-ASDs制剂的药代动力学,在D-GalN/LPS诱导的急性肝损伤(ALI)小鼠模型中,其保肝作用尚不清楚。OBB-ASD的表征表明OBB活性药物成分(API)的结晶形式在OBB-ASD中变成无定形形式。更重要的是,OBB-ASDs显示出比OBBAPI更高的生物利用度。此外,OBB-ASDs治疗恢复了异常的组织病理学变化,改善肝功能,减轻ALI小鼠肝脏炎症介质和氧化应激。喷雾干燥技术产生了无定形形式的OBB,能显著提高生物利用度,表现出优异的保肝作用,表明OBB-ASDs可以在保肝药物递送系统中表现出进一步的潜力。我们的研究结果为提高其他化合物的生物利用度和药理活性提供了指导。尤其是不溶性天然化合物。同时,OBB-ASDs的研制成功可以为难溶性药物的研究过程提供新的思路。
    Oxyberberine (OBB) is a significant natural compound, with excellent hepatoprotective properties. However, the poor water solubility of OBB hinders its release and absorption thus resulting in low bioavailability. To overcome these drawbacks of OBB, amorphous spray-dried powders (ASDs) of OBB were formulated. The dissolution, characterizations, and pharmacokinetics of OBB-ASDs formulation were investigated, and its hepatoprotective action was disquisitive in the D-GalN/LPS-induced acute liver injury (ALI) mouse model. The characterizations of OBB-ASDs indicated that the crystalline form of OBB active pharmaceutical ingredients (API) was changed into an amorphous form in OBB-ASDs. More importantly, OBB-ASDs showed a higher bioavailability than OBB API. In addition, OBB-ASDs treatment restored abnormal histopathological changes, improved liver functions, and relieved hepatic inflammatory mediators and oxidative stress in ALI mice. The spray drying techniques produced an amorphous form of OBB, which could significantly enhance the bioavailability and exhibit excellent hepatoprotective effects, indicating that the OBB-ASDs can exhibit further potential in hepatoprotective drug delivery systems. Our results provide guidance for improving the bioavailability and pharmacological activities of other compounds, especially insoluble natural compounds. Meanwhile, the successful development of OBB-ASDs could shed new light on the research process of poorly soluble medicine.
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  • 文章类型: Journal Article
    黄曲霉毒素B1是全球关注的主要食品安全问题,是由作物生长过程中的产毒真菌产生的,干燥,和存储,并显示出每年的患病率在增加。本研究旨在使用ATR-FTIR结合机器学习算法检测辣椒样品中的黄曲霉毒素B1。我们发现83.6%的辣椒粉样品被曲霉和青霉菌污染,黄曲霉毒素B1的水平范围为7.63至44.32μg/kg。指纹区(1800-400cm-1)的ATR-FTIR光谱显示,在1587、1393和1038cm-1的条带中,峰强度变化主要与黄曲霉毒素B1结构有关。无法分离具有不同痕量黄曲霉毒素B1的样品的PCA图。振动光谱学结合机器学习被应用于解决这个问题。logistic回归模型的F1评分最好,准确率最高(73%),%灵敏度(73%),和%特异性(71%),其次是随机森林和支持向量机模型。尽管逻辑回归模型贡献了重要的发现,这项研究代表了一个实验室研究项目。由于ATR-FTIR光谱测量的特殊性,几批测量的光谱可能不同,需要在多个光谱范围上运行模型,并在后续应用中使用增加的样本大小。当需要简单的现场测试时,这种提出的方法具有提供快速准确结果的潜力,并且在有关食品中毒素检测的未来应用中可能很有价值。
    Aflatoxin B1, a major global food safety concern, is produced by toxigenic fungi during crop growing, drying, and storage, and shows increasing annual prevalence. This study aimed to detect aflatoxin B1 in chili samples using ATR-FTIR coupled with machine learning algorithms. We found that 83.6% of the chili powder samples were contaminated with Aspergillus and Penicillium species, with aflatoxin B1 levels ranging from 7.63 to 44.32 μg/kg. ATR-FTIR spectroscopy in the fingerprint region (1800-400 cm-1) showed peak intensity variation in the bands at 1587, 1393, and 1038 cm-1, which are mostly related to aflatoxin B1 structure. The PCA plots from samples with different trace amounts of aflatoxin B1 could not be separated. Vibrational spectroscopy combined with machine learning was applied to address this issue. The logistic regression model had the best F1 score with the highest %accuracy (73%), %sensitivity (73%), and %specificity (71%), followed by random forest and support vector machine models. Although the logistic regression model contributed significant findings, this study represents a laboratory research project. Because of the peculiarities of the ATR-FTIR spectral measurements, the spectra measured for several batches may differ, necessitating running the model on multiple spectral ranges and using increased sample sizes in subsequent applications. This proposed method has the potential to provide rapid and accurate results and may be valuable in future applications regarding toxin detection in foods when simple onsite testing is required.
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  • 文章类型: Journal Article
    背景:草莓是一种具有高抗氧化能力的水果,因为它富含酚类化合物,收获后迅速变质。喷雾干燥是减少损失的替代方法;然而,这些粉末存在瞬间化的问题,使得有必要实施团聚过程。储存期间,粉状食品可以经历一系列无定形状态的变化,从最初处于玻璃态的产品到胶状状态,其中由于基质中水的流动性增加,所有性质都被显著改变。方法:研究目的是评估流化床团聚草莓粉混合物在三种温度(15、25和25°C)下的储存稳定性(6个月),65%相对湿度的受控环境,和PET箔层压膜袋作为包装。水分,水活动,体积和压实密度,卡尔和豪斯纳指数,溶解度,吸湿性,润湿性,安息角,抗氧化能力,总酚,花青素,维生素C,监测颜色(CIE-Lab)和粒度。结果:方差分析显示所有与储存时间有关的因变量的统计学差异(p<0.05);储存温度对S没有显着影响,ABTS,DPPH和Hu。储存过程中的时间-温度相互作用对S没有显着影响(p>0.05),ABTS,DPPH,Hu和L。附聚物显示出水分和aw值,可提供出色的劣化反应稳定性;它保持良好的流动性,低凝聚力,抗氧化能力保持在50%以上,总酚76%,39%为花色苷,和维生素C的40%;在评估过程中保留了粒径。颜色仅在从第5个月起的35°C处理中受到影响。结论:一旦确定了作为保质期预测因子的属性的临界值,该研究将作为确定刨花板保质期的工具。
    Background: Strawberry is a fruit with a high antioxidant capacity due to its richness in phenolic compounds that suffer a rapid post-harvest deterioration. Spray drying is an alternative to reduce losses; however, these powders present problems of instantanisation, making it necessary to implement agglomeration processes. During storage, powdered food products can undergo a series of changes in their amorphous state from a product initially in a vitreous state to a gummy state, where all properties are substantially modified due to the increased mobility of water in the matrix. Methods: The research objective was to evaluate the storage stability (6 months) of a fluidized bed agglomerated strawberry powder mixture at three temperatures (15, 25 and 25°C), a controlled environment at 65% relative moisture, and PET foil laminated film bags as packaging. Moisture, water activity, bulk and compacted density, Carr and Hausner indices, solubility, hygroscopicity, wettability, angle of repose, antioxidant capacities, total phenols, anthocyanins, vitamin C, color (CIE-Lab) and particle size were monitored. Results: ANOVA showed statistically significant differences (p<0.05) for all dependent variables concerning storage time; storage temperature had no significant effect on S, ABTS, DPPH and Hu. The time-temperature interaction during storage had no significant effect (p>0.05) on S, ABTS, DPPH, Hu and L. The agglomerate showed moisture and aw values that confer excellent stability against deterioration reactions; it retained good fluidity, low cohesiveness, and retentions above 50% for antioxidant capacity, 76% for total phenols, 39% for anthocyanins, and 40% for vitamin C; particle size was retained during the evaluation. The color was only affected in the 35°C treatment from the fifth month onwards. Conclusions: The study will serve as a tool for the determination of the shelf life of the chipboard once the critical values of the attributes selected as predictors of shelf life are defined.
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  • 文章类型: Journal Article
    玉米肽(CP)是一种短,自然发生,和从玉米蛋白酶催化水解产生的生理活性肽。CP在预防肥胖相关疾病中起作用,但它对减少炎症的影响尚不清楚。因此,这项研究检查了玉米肽粉(CPP)对脂多糖(LPS)有害作用的可能的保护作用,特别强调减少脂肪细胞的氧化损伤和炎症。因此,成熟的3T3-L1脂肪细胞暴露于10ng/mLLPS,有或没有CPP(10和20μg/mL)。LPS刺激增加了活性氧和超氧阴离子的产生。然而,通过CPP预处理,这种效应以剂量依赖性方式降低.CPP处理提高了抗氧化酶锰超氧化物歧化酶(mnSOD)和谷胱甘肽过氧化物酶1(Gpx1)的mRNA表达,同时降低了胞浆活性氧指标p40和p67(NADPH氧化酶2)的mRNA表达。此外,CPP抑制单核细胞趋化蛋白-1,肿瘤坏死因子-α,LPS诱导Toll样受体4和核因子κBmRNA表达。这些发现表明,CPP可能通过一种称为Toll样受体4/核因子κB介导的信号传导的新机制来抑制氧化损伤和炎症反应,从而改善脂肪细胞功能障碍。
    Corn peptide (CP) is a short, naturally occurring, and physiologically active peptide generated from corn-protease-catalyzed hydrolysis. CP plays a role in preventing obesity-related disorders, but its impact on reducing inflammation is unknown. Hence, this study examined the possible protective effects of corn peptide powder (CPP) against the harmful effects of lipopolysaccharide (LPS), with a particular emphasis on reducing oxidative damage and inflammation in adipocytes. Hence, mature 3T3-L1 adipocytes underwent exposure to 10 ng/mL LPS, with or without CPP (10 and 20 μg/mL). LPS stimulation increased reactive oxygen species and superoxide anion generation. However, this effect was reduced in a dose-dependent manner by pretreatment with CPP. CPP treatment elevated the mRNA expressions of the antioxidant enzymes manganese superoxide dismutase (mnSOD) and glutathione peroxidase 1 (Gpx1) while reducing the mRNA expressions of the cytosolic reactive oxygen species indicators p40 and p67 (NADPH oxidase 2). In addition, CPP inhibited the monocyte chemoattractant protein-1, tumor necrosis factor-alpha, Toll-like receptor 4, and nuclear factor kappa B mRNA expressions induced by LPS. These findings demonstrate that CPP may ameliorate adipocyte dysfunction by suppressing oxidative damage and inflammatory responses through a new mechanism known as Toll-like receptor 4/nuclear factor kappa B-mediated signaling.
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  • 文章类型: News
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