Phenolic

酚醛
  • 文章类型: Journal Article
    这项研究是第一个记录营养成分波动的研究,抗氧化能力,和来自干人参芽(DGS)的红人参芽(RGS)和黑人参芽(BGS)老化过程中的理化特性。人参皂苷总水平差异为54.72(DGS)→57.15(RGS)和6.98(BGS)mg/g,具体来说,人参皂苷F2和Rd2在RGS中显著增加,分别为1.97→5.88和2.41→5.49mg/g,分别。酚类物质急剧增加,为297.02→1770.01(6.0倍);DGS→RGS中的1834.94(6.2倍)μg/g;苯甲酸含量丰富的BGS(>15.3倍),绿原酸(>9.5倍),和儿茶素(>4.2倍),而氨基酸显着减少(3686.81→1505.00;364.64mg/100g),精氨酸显着下降。此外,有益因素(总酚含量:TPC;总黄酮含量:TFC;美拉德反应产物:MRP)显示出BGS>RGS>DGS的增加趋势(约2.0倍),抗氧化剂模式显着增加,潜在容量如下:ABTS(48.3:DGS→65.8:RGS;70.2%:BGS)>DPPH(18.5→44.6;59.2%)>羟基(23.2→35.4;39.9%)>FRAP(0.6→1.8;1.8%)在500μg/mL时。特别是,DNA保护表现出100%的优良率,其顺序为BGS(25μg/mL)>RGS(50μg/mL)>DGS(500μg/mL)。这些发现表明,加工过的人参芽可以成为天然抗氧化剂的绝佳制剂。
    This study was the first to document the fluctuations of nutritional constituents, antioxidant capacities, and physicochemical characteristics during the aging processes of red ginseng sprouts (RGS) and black ginseng sprouts (BGS) from dried ginseng sprouts (DGS). Total ginsenoside levels differed with 54.72 (DGS) → 57.15 (RGS) and 6.98 (BGS) mg/g, specifically, ginsenoside F2 and Rd2 in RGS remarkably increased with 1.97 → 5.88 and 2.41 → 5.49 mg/g, respectively. Phenolics increased dramatically as 297.02 → 1770.01 (6.0-fold); 1834.94 (6.2-fold) μg/g in DGS → RGS; BGS with abundance contents of benzoic acid (>15.3-fold), chlorogenic acid (>9.5-fold), and catechin (>4.2-fold), whereas amino acids markedly decreased (3686.81 → 1505.00; 364.64 mg/100 g), with arginine showing a significant decrease. Moreover, beneficial factors (total phenolic content: TPC; total flavonoid content: TFC; maillard reaction products: MRP) displayed increase tendencies (approximately 2.0-fold) with BGS > RGS > DGS, and antioxidant patterns significantly increased with potential capacities as follows: ABTS (48.3: DGS → 65.8: RGS; 70.2 %: BGS) > DPPH (18.5 → 44.6; 59.2 %) > hydroxyl (23.2 → 35.4; 39.9 %) > FRAP (0.6 → 1.8; 1.8 %) at 500 μg/mL. In particular, DNA protection exhibited excellent rates of 100 %, in the order of BGS (25 μg/mL) > RGS (50 μg/mL) > DGS (500 μg/mL). These findings suggest that processed ginseng sprouts can be excellent agents for natural antioxidants.
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  • 文章类型: Journal Article
    阿魏酸是一种广泛分布的酚类物质,具有多种生物活性,它已被广泛用于制药,食物,和化妆品行业。伤口是需要治疗的复杂皮肤病变,其治疗时间长且昂贵。这鼓励寻找替代疗法,特别是在天然来源的生物活性物质领域。
    目的:本研究旨在对阿魏酸治疗伤口的研究进行文献综述。
    结果:研究发现,阿魏酸通过不同的作用机制起作用,例如抗氧化剂,抗炎,抗菌,胶原蛋白生产,血管生成,和上皮再生效应。这些特性在愈合的不同阶段协同作用,这将其与传统治疗方法区分开来。此外,阿魏酸有皮肤吸收,低皮肤新陈代谢,和低毒性。
    结论:该领域的研究是最新的,需要进一步研究以扩大阿魏酸在伤口愈合中的可能性和治疗效率。
    Ferulic acid is a widely distributed phenolic substance with diverse bioactive properties, which has been widely used in the pharmaceutical, food, and cosmetic industries. Wounds are complex skin lesions to treat and their treatment is long and costly. This encourages the search for alternative treatments, especially in the area of bioactive substances of natural origin.
    OBJECTIVE: This work aims to make a bibliographic survey on studies of the use of ferulic acid in the treatment of wounds.
    RESULTS: The studies found show that ferulic acid acts through different mechanisms of action such as antioxidant, anti-inflammatory, antimicrobial, collagen production, angiogenic, and reepithelialization effects. These properties act synergistically in different stages of healing, which differentiates it from conventional treatments. In addition, ferulic acid has dermal absorption, low skin metabolism, and low toxicity.
    CONCLUSIONS: Studies in this area are recent and further research is needed to expand the possibilities and therapeutic efficiency of ferulic acid in wound healing.
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  • 文章类型: Journal Article
    这项研究调查了总酚-黄酮的含量,抗氧化活性,和不同部位的植物化学化合物(灯泡,茎,leaf,和花)特有的Bellevaliasasonii,通常被称为风信子,属于天门冬科。鳞茎提取物中的酚含量最高(117.28μgGAE),茎中的酚含量最低(45.11μgGAE)。相反,叶提取物表现出最高的类黄酮含量(79.44μgQEs),而茎显示最低(22.77μgQE)。当抗氧化活性进行比较时,通过DPPH方法叶=花>球茎>茎;在ABTS和CUPRAC方法中,球茎>花>叶>茎,分别。考虑到总体结果,据透露,鳞茎和花朵表现出更高的活性,与其他部分相比,茎表现出更低的活性。植物化学分析确定了53种活性物质,在任何提取物中不存在27个,在所有提取物中检测到15个。植物化学物质的分布因部位而异,用灯泡,茎,鲜花,和叶子也不同的数字。LC-MS/MS分析显示,叶子中含有富马酸,球茎中的咖啡酸,和花中的宇宙素和奎尼酸。这项研究提供了对B.sasonii的基本见解,蒂尔基耶的一种重要特有植物,为未来研究其药用和生态作用奠定基础。
    The study investigated total phenolic-flavonoid content, antioxidant activity, and phytochemical compounds across various parts (bulb, stem, leaf, and flower) of the endemic Bellevalia sasonii, commonly known as hyacinth, belonging to the Asparagaceae family. Phenolic content was highest in bulb extracts (117.28 μg GAE) and lowest in stems (45.11 μg GAE). Conversely, leaf extracts exhibited the highest flavonoid content (79.44 μg QEs), while stems showed the lowest (22.77 μg QEs). When the antioxidant activities were compared, by DPPH method leaf = flower > bulb > stem; in ABTS and CUPRAC methods bulb > flower > leaf > stem, respectively. Considering the results in general, it was revealed that bulbs and flowers displayed higher activity, while stem exhibited lower activity compared to other parts. The phytochemical analysis identified 53 active substances, with 27 absent in any extract and 15 detected across all extracts. The distribution of phytochemicals varied among parts, with bulbs, stems, flowers, and leaves also different numbers. The LC-MS/MS analysis revealed prominent metabolites including fumaric acid in leaves, caffeic acid in bulbs, and cosmosiin and quinic acid in flowers. This study provides foundational insights into B. sasonii, an important endemic plant in Türkiye, laying the groundwork for future research on its medicinal and ecological roles.
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  • 文章类型: Journal Article
    Ajowan(TrachyspermumammiL.)被认为是一种有价值的香料和药草。在这项研究中,在不同的干燥处理下,研究了阿高地上部分的精油含量和组成(太阳,shade,烤箱在45°C,烤箱在65°C,微波炉,和冷冻干燥)。此外,酚类物质含量,类黄酮含量,并对样品的抗氧化能力进行了评估。新鲜样品产生的精油含量最高(1.05%),其次是那些在阳光下(0.7%)和遮阳干燥(0.95%)。基于气相色谱-质谱(GC-MS),确定了30种化合物,其中百里酚(34.84-83.1%),香芹酚(0.15-32.36%),对异丙基苯(0.09-13.66%),γ-萜品烯(3.12-22.58%)含量最高。在干燥方法中,冷冻干燥显示百里酚含量最高,然后在45°C烘箱中干燥。在新鲜样品(38.23mgTAEg-1干重(DW))和在45°C烘箱干燥的样品(7.3mgQEg-1DW)中获得了最高的TPC(总酚含量)和TFC(总黄酮含量),分别。根据HPLC结果,咖啡酸(18.04-21.32毫克/100克DW)和阿魏酸(13.102-19.436毫克/100克DW)是最丰富的酚酸,而在类黄酮中,芦丁含量最高(10.26-19.88mg/100gDW)。总的来说,冷冻干燥是保存酚类(TPC)和类黄酮(TFC)化合物和油成分的最有前途的干燥方法。
    Ajowan (Trachyspermum ammi L.) is considered a valuable spice and medicinal herb. In this study, the essential oil content and composition of the aerial parts of ajowan were investigated under different drying treatments (sun, shade, oven at 45 °C, oven at 65 °C, microwave, and freeze drying). Moreover, the phenolic content, flavonoid content, and antioxidant capacity of samples were also assessed. Fresh samples produced the highest essential oil content (1.05%), followed by those treated under sun (0.7%) and shade drying (0.95%). Based on gas chromatography-mass spectrometry (GC-MS), thirty compounds were determined in which thymol (34.84-83.1%), carvacrol (0.15-32.36%), p-cymene (0.09-13.66%), and γ-terpinene (3.12-22.58%) were the most abundant. Among the drying methods, freeze drying revealed the highest thymol content, followed by drying in a 45 °C oven. The highest TPC (total phenolic content) and TFC (total flavonoid content) were obtained in the fresh sample (38.23 mg TAE g-1 dry weight (DW)) and in the sample oven-dried at 45 °C (7.3 mg QE g-1 DW), respectively. Based on the HPLC results, caffeic acid (18.04-21.32 mg/100 gDW) and ferulic acid (13.102-19.436 mg/100 g DW) were the most abundant phenolic acids, while among flavonoids, rutin constituted the highest amount (10.26-19.88 mg/100 gDW). Overall, freeze drying was the most promising method of drying for preserving the phenolic (TPC) and flavonoid (TFC) compounds and oil components.
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  • 文章类型: Journal Article
    马鲁比。是分布在蒂尔基耶爱琴海地区的特有植物。传统上在安纳托利亚医学中用于治疗感冒和流感,消化不良,惯性和肠痉挛。然而,对植物的植物化学研究是有限的。在本研究中,五种酚类糖苷4',5,6,7-四甲氧基黄芩苷(1),芹菜素-7-O-(3’-O-E-对-香豆酰基)-β-d-吡喃葡萄糖苷(2),利洛苷(3),4-(β-d-吡喃葡萄糖氧基)苯甲酸(4),和黄芪(5)从圆叶M.的地上部分分离,并根据光谱法阐明其结构(1D和2DNMR,和MALDI-TOF/MS)。此外,通过测量白细胞介素(IL-1β,IL-6)和肿瘤坏死因子-α(TNF-α)水平。Tiliroside在所有途径中表现出最高的效力。在浓度为3和6微克/毫升时,它显着降低了促炎细胞因子IL-1β的水平(192.53和175.54pg/mL),IL-6(925.52和946.81pg/mL),和TNF-α(6465.86和6267.67pg/mL)。这是关于特有的圆叶M.的酚类概况的第一份报告。植物的抗炎和抗糖尿病活性潜力应在进一步研究中进行研究。
    Marrubium rotundifolium Boiss. is an endemic plant distributed in Aegean Region of Türkiye. It\'s traditionally used in Anatolian medicine for treatment of cold and flu, dyspepsia, costiveness and intestinal spasms. However, phytochemical studies on the plant are limited. In the present study, five phenolic glycosides 4\',5,6,7-tetramethoxy scutellarein (1), apigenin-7-O-(3\"-O-E-p-coumaroyl)-β-d-glucopyranoside (2), tiliroside (3), 4-(β-d-glucopyranosyloxy) benzoic acid (4), and astragalin (5) were isolated from the aerial parts of M. rotundifolium and their structures were elucidated on the basis of spectroscopic methods (1D and 2D NMR, and MALDI-TOF/MS). Moreover, anti--inflammatory activities of the isolated compounds were evaluated by measurements of interleukins (IL-1β, IL-6) and tumour necrosis factor-alpha (TNF-α) levels. Tiliroside exhibited the highest potency in all pathways. At concentrations of 3 and 6 µg/mL, it significantly decreased the levels of pro-inflammatory cytokines IL-1β (192.53 and 175.54 pg/mL), IL-6 (925.52 and 946.81 pg/mL), and TNF- α (6465.86 and 6267.67 pg/mL). This is the first report on phenolic profile of endemic M. rotundifolium. The anti-inflammatory and antidiabetic activity potential of the plant should be investigated in further studies.
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  • 文章类型: Journal Article
    本研究旨在探索酚类物质的鉴定,酚类物质定量,鲜为人知的泰国水果的抗氧化和潜在的生物功能特性及其治疗2型糖尿病(T2DM)的效力。包括,穿刺术,Dilleniaindica,Diospyrosdecandra,胡枣,弗拉科提亚indica,藤黄,Lepisanthesfruticose,MimusopsElengi,Muntinggiacalabura,网状叶下珠,Streblusasper,柳树,苹果树,通过酚类和类黄酮含量分析了西葫芦和油茶。这些水果受到的科学关注有限,促使对他们的健康益处进行调查,特别是它们与糖尿病管理的相关性。
    该研究利用甲醇粗提物测量酚类和类黄酮水平。此外,UHPLC-DAD用于鉴定和定量酚类。评估甲醇提取物的抗氧化和抗糖尿病能力,包括α-葡萄糖苷酶和α-淀粉酶抑制。
    该研究强调了Cumini是具有强抗氧化活性的酚类(980.42±0.89mgGAE/g和类黄酮(3.55±0.02mgQE/g)化合物的丰富来源(DPPH的IC50;3.00±0.01µg/ml,ABTS的IC50;40±0.01µg/ml,FRAP;898.63±0.02mgTE/ml)。此外,美国Cumini表现出有希望的抗糖尿病作用(S.cuminiIC50;0.13±0.01mg/ml的α-葡萄糖苷酶抑制作用,α-淀粉酶抑制3.91±0.05mg/ml),与阿卡波糖相比(IC50;α-葡萄糖苷酶抑制作用为0.86±0.01mg/ml,α-淀粉酶抑制作用为0.39±0.05mg/ml)。值得注意的是,像儿茶素这样的化合物,没食子酸,山奈酚,和鞣花酸的含量不同。这项研究表明,这些水果,装满了酚类物质,由于其促进健康的特性,具有抗糖尿病饮食甚至药物应用的潜力。
    UNASSIGNED: This research aims to explore the phenolics identification, phenolics quantification, antioxidant and potential biofunctional properties of lesser-known Thai fruits and their potency to treat type 2 diabetes mellitus (T2DM). Including, Antidesma puncticulatum, Dillenia indica, Diospyros decandra, Elaeagnus latifolia, Flacourtia indica, Garcinia dulcis, Lepisanthes fruticose, Mimusops elengi, Muntingia calabura, Phyllanthus reticulatus, Streblus asper, Syzygium cumini, Syzygium malaccense, Willughbeia edulis and Schleichera oleosa were analyzed by their phenolic and flavonoid content. These fruits have received limited scientific attention, prompting an investigation into their health benefits, particularly their relevance to diabetes management.
    UNASSIGNED: The study utilized methanolic crude extracts to measure phenolic and flavonoid levels. Additionally, UHPLC-DAD was utilized to identify and quantify phenolics. The methanolic extracts were assessed for antioxidant and antidiabetic abilities, including α-glucosidase and α-amylase inhibition.
    UNASSIGNED: The study highlighted S. cumini as a rich source of phenolic (980.42 ± 0.89 mg GAE/g and flavonoid (3.55 ± 0.02 mg QE/g) compounds with strong antioxidant activity (IC50 by DPPH; 3.00 ± 0.01 µg/ml, IC50 by ABTS; 40 ± 0.01 µg/ml, FRAP; 898.63 ± 0.02 mg TE/ml). Additionally, S. cumini exhibited promising antidiabetic effects (S. cumini IC50; 0.13 ± 0.01 mg/ml for α-glucosidase inhibition, 3.91 ± 0.05 mg/ml for α-amylase inhibition), compared to Acarbose (IC50; 0.86 ± 0.01 mg/ml for α-glucosidase inhibition, 0.39 ± 0.05 mg/ml for α-amylase inhibition). Remarkably, compounds like catechins, gallic acid, kaempferol, and ellagic acid were identified in various quantities.This study suggests that these fruits, packed with phenolics, hold the potential to be included in an anti-diabetic diet and even pharmaceutical applications due to their health-promoting properties.
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  • 文章类型: Journal Article
    鼠尾草(SalviaofficinalisL.)是一种药用和芳香植物(MAP),属于唇形科。它的形态,生产和化学特性受到非生物和生物因素的影响。使用生物刺激剂似乎是最有趣的创新做法之一,因为它们可以代表实现可持续和有机农业的有希望的方法。尽管在园艺中应用广泛,生物刺激剂对MAPs的使用研究甚少。在此基础上,在为期2年的研究中进行了一项田间试验,以评估使用不同类型的生物刺激剂(含有海藻,富里酸和蛋白质水解产物)和两个在形态学上的应用频率,生产,以及在地中海环境中有机生长的刺槐的化学特性。形态学,生产,和化学参数受因素的影响。生物刺激剂的应用产生了更高的植物高度,叶绿素含量,相对含水量,与对照植物相比,生物量产量和精油产量。此外,更频繁的生物刺激剂的应用产生更高的生物量和精油产量。每周施用富里酸和蛋白质水解产物可产生最高的总新鲜产量(在3.9至8.7tha-1之间)和总干产量(在1.3至2.5tha-1之间)。精油产量几乎翻了一番(33.9kgha-1),蛋白质水解物的应用频率更高。在这项研究中,确定了44种精油化合物,频率因素对38个化合物的百分比有显著影响。一些最具代表性的单萜的百分比最高,如1,8-桉树脑,α-thujone和樟脑,在生物刺激的植物中观察到,与对照植物相比,平均增加6%至35%。总酚的最高值,迷迭香酸,在对照植物中获得了抗氧化活性,并且使用生物刺激剂的频率较低。这项研究强调了在农业有机系统中生产时,如何使用生物刺激剂来改善鼠尾草的生产性能和精油参数。同时,生物刺激剂的应用导致总酚类物质的减少,抗氧化活性和迷迭香酸值。
    Sage (Salvia officinalis L.) is a medicinal and aromatic plant (MAP) belonging to the Lamiaceae family. Its morphological, productive and chemical characteristics are affected by abiotic and biotic factors. The use of biostimulants seems to be one of the most interesting innovative practices due to fact they can represent a promising approach for achieving sustainable and organic agriculture. Despite a large application in horticulture, the use of biostimulants on MAPs has been poorly investigated. On this basis, a field experiment in a 2-year study was done to assess the effect of foliar treatments with different types of biostimulants (containing seaweeds, fulvic acids and protein hydrolysates) and two frequencies of application on morphological, productive, and chemical characteristics of S. officinalis grown organically in Mediterranean environment. Morphological, productive, and chemical parameters were affected by the factors. The biostimulant application generated higher plant height, chlorophyll content, relative water content, biomass yield and essential oil yield compared to control plants. In addition, more frequent application of biostimulants produced higher biomass and essential oil yield. The application of fulvic acid and protein hydrolysates every week produced the highest total fresh yields (between 3.9 and 8.7 t ha-1) and total dry yields (between 1.3 and 2.5 t ha-1). The essential oil yield almost doubled (33.9 kg ha-1) with a higher frequency of protein hydrolysates application. In this study, 44 essential oil compounds were identified, and the frequency factor significantly influenced the percentage of 38 compounds. The highest percentage of some of the most representative monoterpenes, such as 1,8-cineole, α-thujone and camphor, were observed in biostimulated plants, with average increases between 6% and 35% compared to control plants. The highest values for total phenolics, rosmarinic acid, antioxidant activity were obtained in control plants and with a lower frequency of biostimulant applications. This study emphasizes how biostimulant applications may be used to improve sage production performance and essential oil parameters when produced in agricultural organic system. At the same time, biostimulants application caused a decrease in total phenolic, antioxidant activity and rosmarinic acid values.
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  • 文章类型: Journal Article
    背景:本研究研究了γ-氨基丁酸(GABA)结合超声胁迫发芽(AUG)处理对青大麦(HB)酚类含量和抗氧化活性的影响。关键变量,包括发芽时间(范围从0到96小时),超声波功率(200-500W),和GABA浓度(5-20mmol/L),使用响应面法(RSM)进行优化,以增强酚类化合物的富集。此外,这项研究评估了内容,composition,在各种处理条件下,例如单独发芽(G),HB中酚类化合物的抗氧化活性,超声波胁迫萌发(UG),和AUG治疗。
    结果:研究确定了酚类富集HB的最佳条件,其中包括60小时的发芽时间,超声功率为300W,和15毫摩尔L-1的GABA浓度。在这些条件下,HB中的总酚含量(TPC)以每克干重7.73毫克没食子酸当量(mgGAE/gDW)测量,表示与未处理的HB相比34.96%的增强。值得注意的是,所有治疗方式-G,UG,和AUG-显着增加了HB中的酚类含量和抗氧化活性,AUG治疗被证明是最有效的。
    结论:这些获得的结果表明,AUG处理是一种有前途的处理方法,可以富集HB中的酚类化合物并提高抗氧化活性。随后,AUG处理的HB可用于开发富含酚类的发芽功能食品,以进一步拓宽HB的应用。©2024化学工业学会。
    BACKGROUND: This study investigated the effects of γ-aminobutyric acid (GABA) combined with ultrasonic stress germination (AUG) treatment on the phenolic content and antioxidant activity of highland barley (HB). Key variables, including germination times (ranging from 0 to 96 h), ultrasonic power (200-500 W), and GABA concentration (5-20 mmol/L), were optimized using response surface methodology (RSM) to enhance the enrichment of phenolic compounds. Furthermore, the study assessed the content, composition, and antioxidant activities of phenolic compounds in HB under various treatment conditions such as germination alone (G), ultrasonic stress germination (UG), and AUG treatment.
    RESULTS: The study identified optimal conditions for the phenolic enrichment of HB, which included a germination time of 60 h, an ultrasound power of 300 W, and a GABA concentration of 15 mmol L-1. Under these conditions, the total phenolic content (TPC) in HB was measured at 7.73 milligrams of gallic acid equivalents per gram dry weight (mg GAE/g DW), representing a 34.96% enhancement compared to untreated HB. Notably, all treatment modalities - G, UG, and AUG - significantly increased the phenolic content and antioxidant activity in HB, with the AUG treatment proving to be the most effective.
    CONCLUSIONS: These obtained results suggest that AUG treatment is a promising processing method for enriching phenolic compounds and improving antioxidant activity in HB. Subsequently, the AUG-treated HB can be used to develop phenolic-rich germinated functional foods to further broaden the application of HB. © 2024 Society of Chemical Industry.
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  • 文章类型: Journal Article
    生产过剩的日期水果与有限的工业利用导致大量的浪费和损失,特别是在被称为bisr的日期到期的早期阶段。本研究旨在研究不同浓度(25%,50%,和100%)作为天然甜味剂代替糖和大麦粉作为膳食纤维的来源,维生素,在7、14和21天的储存期内,饼干生产中的矿物质代替小麦粉(50%)。分析表明,比斯铝-哈拉斯粉末样品的水分含量为11.84%,灰分含量为2.30%,粗纤维含量为10.20%。此外,蛋白质含量低(2.50%),脂肪含量低(0.77%),总碳水化合物为82.59%。饼干生产中BisrAl-Khalas的逐渐替代导致水分增加,灰,脂肪,蛋白质,粗纤维,和铁含量,以及总碳水化合物百分比的减少。BisrAl-Khalas粉末的化学分析表明抗氧化剂含量很高,含248.49毫克没食子酸/克酚类化合物,31.03毫克槲皮素/克黄酮类化合物,抗氧化活性为42.30%,如DPPH试验所示。过氧化物含量为0.009mg当量/kg。与不含BisrAl-Khalas的样品相比,具有不同比例的BisrAl-Khalas的饼干样品显示出改善的抗氧化能力,随着储存期间更换百分比的增加,电阻增加。物理属性,如直径,高度,和价差百分比,以及颜色等感官特性,风味,香气,和味道,随着混合物中BisrAl-Khalas的含量升高,显着增强。用100%纯BisrAl-Khalas粉末强化的饼干样品被发现不太令人满意,而具有25%取代度的样品对感官性能没有负面影响。此外,丙烯酰胺和羟甲基糠醛(HMF)在不同浓度的Bisr粉和饼干样品中未检测到(25%,50%,和100%)。总之,研究表明比斯·哈拉斯粉末,未充分利用的废物,由于其强大的抗氧化活性,具有高营养价值和延长的储存期,因此有可能为商业饼干生产增加价值。
    An overproducing date fruit with limited industrial utilization leads to significant waste and losses, especially in the early stage of date maturity known as bisr. This study aimed to investigate the potential use of bisr date powder (BDP) at different concentrations (25%, 50%, and 100%) as a natural sweetener instead of sugar and barley flour as a source of dietary fiber, vitamins, and minerals instead of wheat flour (50%) in biscuit production over storage periods of 7, 14, and 21 days. The analysis revealed that the bisr Al-Khalas powder sample had a moisture content of 11.84%, ash content of 2.30%, and crude fiber content of 10.20%. Additionally, it had a low protein (2.50%) and fat (0.77%) content, with total carbohydrates at 82.59%. The gradual substitution of bisr Al-Khalas in biscuit production resulted in an increased moisture, ash, fat, protein, crude fiber, and iron content, as well as a decrease in total carbohydrate percentage. A chemical analysis of bisr Al-Khalas powder demonstrated high levels of antioxidants, with 248.49 mg gallic acid/g of phenolic compounds, 31.03 mg quercetin/g of flavonoids, and an antioxidant activity ranging from 42.30%, as shown by the DPPH test. The peroxide content was 0.009 mg equivalent/kg. Biscuit samples with different proportions of bisr Al-Khalas showed an improved resistance to oxidation compared to samples without bisr Al-Khalas, with increased resistance as the percentage of replacement increased during storage. Physical properties such as the diameter, height, and spread percentage, as well as organoleptic properties like color, flavor, aroma, and taste, were significantly enhanced with higher levels of bisr Al-Khalas in the mixture. Biscuit samples fortified with 100% pure bisr Al-Khalas powder were found to be less acceptable, while samples with a 25% substitution did not negatively impact sensory properties. In addition, acrylamide and hydroxymethylfurfural (HMF) were not detected in bisr powder and biscuit samples prepared at different concentrations (25%, 50%, and 100%). In conclusion, the study suggests that bisr Al-Khalas powder, an underutilized waste product, has the potential to add value to commercial biscuit production due to its high nutritional value and extended storage period resulting from its potent antioxidant activity.
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  • 文章类型: Journal Article
    为研究中国白酒不同谷物发酵阶段酚类代谢产物的变化,应用超高效液相色谱-四极杆飞行时间质谱(UHPLC-QTOF-MS)对不同酚类代谢产物进行鉴定和分析,主成分分析和偏最小二乘判别分析相结合。结果表明,不同发酵阶段的酚类代谢产物存在显著差异。在检测到的231种酚类代谢物中,使用偏最小二乘判别分析在不同组之间筛选36、31、19、23、14和50差异酚类代谢物。通过KEGG代谢途径富集分析,确定了12条差异酚类代谢物相关性高的代谢途径和23种主要参与差异代谢物。本研究初步揭示了不同发酵阶段酚类代谢产物的差异,为进一步提高中国白酒的口感和品质提供理论依据。
    To investigate the changes of phenolic metabolite during different grains fermentation stages of Chinse Baijiu, the ultra-performance liquid chromatography-quadrupole time of-flight mass spectrometry (UHPLC-QTOF-MS) was applied to identify and analyze the different phenolic metabolites, combined with principal component analysis and partial least squares discriminant analysis. Results indicated that significant differences in phenolic metabolites during different fermentation stages were found. Among the 231 phenolic metabolites detected, 36, 31, 19, 23, 14, and 50 differential phenolic metabolites were screened between different groups using partial least squares discriminant analysis. Twelve metabolic pathways with high correlation of differential phenolic metabolites and 23 main participating differential metabolites were identified through KEGG metabolic pathway enrichment analysis. The present study preliminarily revealed the differences of phenolic metabolites at different fermentation stages, and providing a theoretical basis for the further improving of the taste and quality of Chinese Baijiu.
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