Research progress on active mechanism and structure feature of polysaccharides from Zizyphus jujube in Rhamnaceae plants
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摘要:
鼠李科枣属植物包含原变种枣(Ziziphus jujuba Mill. var. jujuba)、无刺枣(Ziziphus jujuba var. inermis)、酸枣(Ziziphus jujuba var. spinosa)等许多品种,而其中大枣在全国各地有最丰富的栽培变种,如哈密大枣、黄河滩枣等。枣属植物品种丰富且药食两用,多糖作为枣的主要活性成分之一,是其发挥功效的重要药效物质基础。枣多糖已被发现具有促造血、抗氧化、抗肿瘤、修复肝损伤、免疫调节、抗炎等多种药理活性。本文通过对不同品种和不同产地来源的枣类多糖文献进行全面归纳分析,综述了枣多糖发挥生物活性的潜在作用机制,汇总了枣多糖相对分子质量、单糖组成、糖残基连接方式等一级结构特征,并对枣多糖硫酸化、磷酸化、羧甲基化、硒化、乙酰化的取代基修饰进行总结,以期为枣类在多糖创新药物、功能食品等领域的研究与开发利用提供参考。
Abstract:The genus jujube (Ziziphus jujuba Mill.) within the Rhamnaceae family encompasses numerous varieties, such as Ziziphus jujuba Mill. var. jujuba, Ziziphus jujuba var. inermis, and var. spinosa, etc. Among these, the jujube fructus has the most abundant cultivated variants across the country, including Ziziphus jujuba cv. Hamidazao and Ziziphus jujuba cv. Huanghetanzao. Jujube plants are rich in variety and are used for both medicinal and food purposes. Polysaccharides, one of the main active ingredients of jujube, are important medicinal components that contribute to its efficacy. Jujube polysaccharides have been found to promote hematopoiesis, exhibit antioxidant and anti-tumor activities, repair liver damage, regulate the immune system, and provide anti-inflammatory effects. By comprehensively summarizing and analyzing the literature on jujube polysaccharides from different varieties and origins, this paper reviews the potential mechanisms of action of jujube polysaccharides in exerting biological activities. It also summarizes the primary structural features, such as relative molecular mass, monosaccharide composition, glycosidic linkage, and the substituent modifications of jujube polysaccharides by sulfation, phosphorylation, carboxymethylation, selenization, and acetylation. This review aims to provide a reference for the research and development of jujube in the fields of innovative polysaccharide drugs and functional foods.
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表 1 大枣多糖促造血活性研究
实验设计 结 果 文献 5/6肾切SD大鼠除贫血模型
ELISA试剂盒血清促红细胞生成素(EPO)水平、肾脏EPO mRNA与EPO蛋白↑,肾性贫血减轻可能与HIF-α蛋白上调相关,红细胞、血红蛋白、血细胞比容和血小板计数↑; [8] 昆明小鼠
放血与环磷酰胺所致小鼠气血双虚模型大枣多糖200 mg/kg剂量最显著,血红蛋白、白细胞、红细胞和血小板↑,
多糖通过升高血清粒-巨噬细胞集落刺激因子,而呈现出促进骨髓造血和兴奋免疫的作用;[9] Wistar雄性大鼠
放血与环磷酰胺所致小鼠气血双虚模型骨髓有核增生、骨髓红系比↑,脾脏、胸腺萎缩↓; [10] Wistar雄性大鼠
放血与环磷酰胺所致小鼠气血双虚模型血红细胞、血红蛋白、血小板↑,改善能量代谢 [11] 表 2 枣多糖抗氧化活性研究
多糖来源 实验设计 结 果 文献 灵宝大枣、
新郑大枣1, 1-二苯基-2-三硝基苯肼(DPPH)乙醇溶液、铁氰化钾溶液、水杨酸-乙醇溶液 DPPH·、羟自由基(·OH)、超氧阴离子自由基(·O2-)的清除能力以及总还原能力与浓度呈正相关; [16] 酸枣果肉 维生素C溶液、DPPH乙醇溶液
水杨酸-乙醇溶液酸枣多糖浓度1 mg/mL,DPPH·清除率达最大值19.12%,·OH清除率达32.99%; [17] 金丝小枣 DPPH乙醇溶液、邻苯三酚溶液 金丝小枣多糖质量浓度2 mg/mL,DPPH·清除率达最大值58.9%
红枣多糖质量浓度2.5 mg/mL,·O2-清除率达76.13%;[18] 红枣 模拟唾液、胃肠动态消化过程 唾液消化后DPPH·清除率提高1.69倍。模拟肠液消化2 h,清除DPPH·与·OH最佳为(57.08±0.76)%与(79.13±1.16)%。胃与小肠反消化液反应3 h,2,2-联氮-二(3-乙基-苯并噻唑-6-磺酸)二铵盐(ABTS)自由基清除率达最大值(37.8±1.31)%和(25.03±0.93)%; [19] 大枣 D-半乳糖诱导昆明小鼠衰老模型 超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-PX)↑,丙二醛(MDA)水平↓; [20] 黑枣 过氧化氢(H2O2)诱导人脐静脉内皮细胞HUVEC、MTT实验 细胞形态恢复,存活率、细胞的荧光强度↑; [21] 圆铃大枣 DPPH无水乙醇溶液、水杨酸-乙醇溶液、FeSO4溶液 圆铃大枣多糖质量浓度1 mg/mL清除率:33.417%(DPPH·),11.905%(·O2-),38.306%(·OH); [22] 大枣 SD大鼠慢性疲劳综合征模型 高剂量组大鼠血清MDA含量↓; [23] 大枣 小肠缺血再灌注兔模型 SOD、过氧化氢酶(CAT)、GSH-Px↑,家兔肠组织MDA水平↓; [24] 哈密大枣 MET诱导斑马鱼胚胎氧化损伤
H2O2诱导人肝癌HepG2细胞氧化损伤斑马鱼胚胎:质量浓度5、25、50 μg/mL,HJP1-a保护作用最强 。多糖HJP-3、HJP-2浓度25 μg/mL,胚胎存活率分别提高71.3%与70.7%。HepG2细胞:HJP-1a、HJP-3、HJP-4组分多糖浓度与存活率提高成正比,100 μg/mL,HJP-3保护作用最强,25 μg/mL,HJP-2最强 [25] 表 3 枣多糖抗肿瘤活性研究
多糖来源 实验设计 结 果 文献 若羌枣种子 宫颈癌细胞(HeLa)
CCK-8检测细胞实验
荧光显微镜观察细胞形态
流式细胞仪多糖剂量与孵育时间增加,凋亡细胞、凋亡小体↑,
若羌枣多糖质量浓度400 μg/mL,24 h与48 h抑制率:63.37%、67.64%;[28] 狗头枣 人结肠癌细胞(LoVo)、巨噬细胞RAW 264.7、MTT法、流式细胞术、乳酸脱氢酶LDH法 阻滞细胞G0/G1期,巨噬细胞存活率↑,
狗头枣多糖质量浓度400 μg/mL,肿瘤细胞存活率↓,
刺激巨噬细胞产生培养上清抑制癌细胞,最佳多糖浓度400 μg/mL;[29] 若羌枣 人结肠癌细胞(SW620)、姜酚、流式细胞术、CCK-8检测、荧光显微镜分析 若羌枣多糖与姜酚联合使用优于单独使用,凋亡比例为(60.2±2.6)%,抑制集落形成。单独使用阻滞G2/M期,联合使用阻滞G0/G1期; [30] 灰枣 HepG2、MTT实验、流式细胞术、划痕法、Transwell法检测细胞增殖、Western blot(WB)法观测 凋亡相关蛋白(Bax,Caspase-3/-9等)↑,Bcl-2↓,
Bax促进细胞色素C释放而诱导肿瘤细胞凋亡,通过线粒体途径抑制肿瘤细胞。灰枣多糖BJP-2质量浓度800 μg/mL,40%以上的细胞进入凋亡状态,400 μg/mL与800 μg/mL细胞迁移率与侵袭数↓;[31] 红枣 HepG2、MTT法、流式细胞术、PI染色法、RT-PCR检测 细胞增殖水平、s周期分布、晚期细胞凋亡率↓,
caspase-3 mRNA表达水平↑,
红枣多糖质量浓度40 mg/mL:最大抑制率68.79%,
凋亡基因Bcl-2与多糖浓度成正比,caspase-3 mRNA成反比;[32] 陕北滩枣 HepG2、荷瘤昆明小鼠模型(S180细胞)、MTT法、流式细胞仪检测 肝癌细胞:阻滞G0/G1期,增殖水平、诱导凋亡↓,
陕北滩枣多糖质量浓度400 mg/mL明显抑制S180肿瘤细胞白细胞、血小板↑,胸腺、脾脏指数↑[33] 表 4 枣多糖抑制肝损伤活性研究
多糖来源 实验设计 结 果 文献 大枣 昆明小鼠、SD大鼠
四氯化碳(CCl4)所致肝损伤模型最佳剂量:100 mg/kg(大鼠),200 mg/kg(小鼠),血清ALT(谷丙转氨酶)↓,
大鼠:肝窦恢复,肝细胞再生,炎细胞浸润、脂泡变性减轻
小鼠:肝组织浑浊肿、空泡及脂肪变性减轻;[36] 新疆大枣 ICR小鼠
CCl4所致肝损伤模型与柴胡疏肝散联用,小鼠血清ALT、AST(谷草转氨酶)、ALP(碱性磷酸酶)↓,SOD↑; [37] 陕北滩枣 昆明小鼠
CCl4所致肝损伤模型剂量400 mg/kg,ALT、AST、LDH↓,SOD、GSH-Px↑,MDA↓; [38] 酸枣果肉 昆明小鼠
CCl4所致肝损伤模型SOD、CAT、GSH↑,MDA↓,
蛋白表达(HO-1、GSTα、NQO1)↑,增强肝组织Nrf2;[39] 冬枣 昆明小鼠
CCl4所致肝损伤模型肝脏组病理织剂量依赖性改善,ALT、AST↓,
高剂量枣多糖保护正常肝脏结构,无细胞坏死和炎症浸润;[40] 黄河滩枣 昆明小鼠
CCl4与对乙酰氨基酚所致肝损伤模型最佳剂量400 mg/kg,ALT、AST、LDH(乳酸脱氢酶)↓,SOD、GSH-Px↑,MDA↓,脂肪变性、细胞坏死、炎症浸润↓ [41] 表 5 枣多糖调节肠道菌群活性研究
多糖来源 实验设计 结 果 文献 喀什骏枣 体外模拟消化与酵解 还原糖增加后减少,酵解产物总糖、葡萄糖、pH↓,
多糖可被肠道微生物分解利用;[45] 大枣 C57BL/6小鼠
氧化偶氮甲烷(AOM)联合葡聚糖硫酸钠(DSS)诱导益生菌多样性↑,乳杆菌科、拟杆菌科和德巴利菌
科等↑;[46] 木枣 C57BL/6小鼠
AOM/DSS诱导、采用16S rDNA 基因测序、靶向GC和非靶向UHPLC-MS方法双歧杆菌、拟杆菌、乳酸杆菌、梭状芽孢杆菌↑; [47] 金丝小枣 ICR小鼠免疫抑制模型 SCFA(乙酸、丙酸、异丁酸、异戊酸、戊酸)↑,
普雷沃菌科Alloprevotella↑,脱硫弧菌丰度↓[48] 表 6 枣多糖免疫调节活性研究
多糖来源 实验设计 结 果 文献 木枣 THP-细胞诱导分化巨噬细胞
ELISA检测试剂盒
MTT细胞毒性实验巨噬细胞与多糖共孵育24 h,鸡红细胞的吞噬率、吞噬指数↑; [50] 金丝小枣 昆明小鼠
不同浓度粗多糖经口给药
MTT法金丝小枣粗多糖:脾细胞增殖率、脾脏与胸腺指数、腹腔巨噬细胞↑,
纯化组分ZSP3、ZSP4:诱导脾淋巴细胞增殖指数最高(200 g/mL);[51] 大枣 BALB/c小鼠免疫模型
MTT法、ELISA法大枣多糖质量浓度20~320 μg/mL,淋巴细胞增殖↑,
IL-2、IL-6、IL-10、IL-12、mRNA表达↑;[52] 金丝小枣 昆明小鼠
4×4双因子实验设计、MTT法枣多糖(0~150 μg/mL)协同LPS促进脾B淋巴细胞增殖; [53] 新疆阿克苏灰枣 多糖100 mg/kg灌胃雄性小鼠7 d
MTT法多糖HP1与HP2组分,均可显著提高小鼠免疫器官和巨噬细胞吞噬指数; [54] 金昌枣 巨噬细胞RAW264.7、昆明小鼠
样品刺激淋巴细胞、MTT法多糖JJC1与JJC2组分巨噬细胞吞噬功能↑,脾细胞增殖↑,
JJC2补体激活抑制作用:经典途径(CH50:2.73 mg/mL)、替代途径(AP50:2.99 mg/mL);[55] 酸枣仁 RAW264.7细胞
MTT法、Griess法、WB分析酸枣多糖5、10、50 μg/mL,增殖率分别为115%、147%、182%,促进巨噬细胞NO的释放,
引起IκB-α和ERK的蛋白磷酸化;[56] 酸枣仁 Caco-2细胞、LPS 诱导损伤
MTT法、WB分析、RT-PCR法酸性多糖6.25、12.5、25 μg/mL,细胞增殖↑,
细胞Occludin、ZO-1 蛋白表达量↑,
炎症因子IL-6、IL-8、IL-1β、TNF-α的mRNA转录表达↓;[57] 酸枣仁 5 μg/mL多糖不同时间作用于RAW264.7细胞、WB分析 诱导IκB-α和ERK蛋白磷酸化
激活IκB/NF-κB和ERK/MAPK信号通路;[58] 红枣 Jurkat T(急性白血病T细胞)
多糖与细胞共培养白细胞介素(IL)-2↓,
2.5 mg/mL红枣多糖抑制率达81.7%;[59] 金丝小枣 绵羊红细胞 金丝小枣多糖ZSG4b浓度为210 μg/mL,抗补体活性为90% [60] 表 7 枣多糖抗炎活性研究
多糖来源 实验设计 结 果 文献 木枣 RAW264.7巨噬细胞
MTT法、Griess法测定NO产生、ELISA检测木枣多糖ZMP处理(200~800 μg/mL)显著维持巨噬细胞
活力↑,NO产生↓,TNF-α水平↓,细胞因子IL-10↑;[65] 骏枣 RAW264.7巨噬细胞
细胞活力测定、ELISA检测、WB分析NO产生↓,骏枣多糖浓度100 μg/mL,COX-2的表达显著
降低↓,
TNF-α、IFN-γ、IL-1,剂量依赖性↓,
多糖浓度50 μg/mL、100 μg/mL,TNF-α、IL-17水平显著↓,
抑制NF-κB和p38/JNK MAPK信号传导发挥抗炎作用;[66] 酸枣果肉 Caco-2、RAW264.7细胞
三硝基苯磺酸(TNBS)诱导SD 大鼠肠炎模型、ELISA、MPO试剂盒、WB分析多糖浓度100 μg/mL时,Caco-2细胞屏障保护作用最大,
紧密连接蛋白表达、AMPK活性↑,大鼠结肠损伤↓,
血清与结肠组织TNF-α、IL-1β、IL-6表达↓;[67] 酸枣仁 多糖喂养及TNBS诱导C57BL/6小鼠肠炎模型 水肿、坏死和炎细胞浸润↓; [58] 酸枣仁 LPS诱导Caco-2细胞炎症模型
RNA、cDNA试剂盒炎症细胞因子IL-6、IL-8、IL-1β和TNF-α的水平↓,
调节紧密连接蛋白(occludin、ZO-1)的表达↑[68] 表 8 枣多糖一级结构
多糖来源 相对分子质量 糖苷键 单糖组成及物质的量比 生物活性 文献 骏枣 3.25×104 D α-吡喃葡萄苷骨架 Rha-Ara-Gal-Glc-Xyl-Man-GalA=(0.05︰0.34︰0.29︰0.15︰0.08︰0.02︰0.06) 抗氧化 [81] 板枣 - α-糖苷键 GalA-Gal-Ara-Glc-Rha-Xyl-Man 抗氧化 [82] 木枣 89.90 kD - Ara-Gal-Glc-Rha-Man=(4.52︰2.64︰1.04︰0.49︰0.41) 抗炎 [65] 木枣 16.97 kD (1,3,5)-Ara,(1,3)-Ara,(1,5)-Ara,(1,4)-Gal,(1)Ara,(1)Glc Ara-Gal-Glc-Man-Xyl=
(17.36︰3.29︰2.68︰1.05︰1.0)降血脂 [75] 木枣 28.94 kD (1,2,4)-Rha,(1,3,5)-Ara,(1,4)-GalA,(1)-Ara,(1)-Rha(HG) Rha-Ara-Xyl-Man-GalA=
(1.0︰0.9︰0.05︰0.07︰28.9)抗氧化 [83] 木枣 9.73 kD (1,4)-α-GalA,(1,3)-β-D-Gal,(1,3,5)-Ara,(1,2,4)-α-L-Rha,(1)-Ara,(1)-Rha,(1)-Gal(HG) Rha-Ara-Xyl-Man-Glc-Gal-GalA=
(10.51︰6.7︰0.5︰0.26︰0.5︰6.75︰74.69)抗氧化 [84] 木枣 59.1 kD - Rha-Ara-Xyl-Man-Glc-Gal-GalA=
(2.3︰19.7︰1.2︰1.0︰2.6︰8.3︰13.2)抗肿瘤 [85] 木枣 HJP1:6.762×104 D
HJP3:2.936×104 DHJP1:(1,3)-Rha,(1)-Ara,(1,5)-Ara,(1,6)-Gal,(1,4)-Gal,(1,4)-GaA;HJP3:(1)-Rha,(1,5)-Ara,(1,3,5)-Ara,(1)-Gal,(1,4)-GalA(RG-Ⅰ) Man-Rha-GalA-Glc-Gal-Ara
HJP1=(1.3︰27.6︰6.7︰3.7︰13︰47.6)
HJP3=(0.6︰16︰16.7︰6.5︰21︰39.2)抗肿瘤 [86] 木枣 HJP1:6.762×104 D
HJP2:6.13×104 D
HJP3:2.936×104 Dα和β型糖苷键 Man-Rha-GalA-Glc-Gal-Ara
HJP1=(4.3︰16.4︰1.28︰7.9︰21.8︰48.4)
HJP2=(2.44︰4.06︰1.42︰3.41︰55.4︰33.3)
HJP3=(0.69︰22.5︰6.14︰1.68︰29︰40)免疫调节
抗氧化[50] 灰枣 6.42×104 D (1,5)-α-L-Ara,(1,4)-β-D-Gal,T-α-L-Ara,(1,4)-β-D-Gal,(1,4)-α-L-6MeGalA,T-α-L-Ara,T-β-D-Gal GalA-Ara-Gal-Rha-Xyl-GlcA-Glc-Fuc-Man
(39.78︰31.93︰16.86︰6.43︰1.86︰1.28︰1.02︰0.61︰0.23)抗肿瘤 [31] 狗头枣 - β-吡喃糖苷 Man-Rha-GlcA-Glc-Gal-Ara=(1.5︰0.7︰3.7︰64.4︰7.8︰21.9) 抗肿瘤 [29] 黄河滩枣 - - Man-Rha-GalA-Glc-Gal-Ara=(2.62︰14.3︰8.40︰5.29︰32.9︰36.4) 抑制肝损伤 [41] 陕北滩枣 - - Man-Rib-Rha-GlcA-GalA-Glc-Xyl-Gal-Ara=(2.8︰1.8︰6.6︰2.6︰10.9︰5.3︰3.4︰16.5︰50.2) 抑制肝损伤 [38] 灰枣 HP1:6.87×104 D
HP2:1.11×105 D- Rha-Ara-Man-Glc-Gal
HP1=(1.0︰2.43︰3.01︰7.28︰7.11)
HP2=(1.0︰3.28︰1.89︰0.48︰2.28)免疫调节 [54] 灰枣 JP-UD:72.99 kD (1,5)-α-L-Ara,(1,3)-α-L-Ara,(1,3)-β-L-Gal,(1,4)-β-L-GalA,(1,4)-α-L-GalA,T-β-D-Gal Man-GlcA-Rha-GalA-Glc-Gal-Xyl-Ara
(1.17︰2.64︰1.02︰60.46︰2.02︰13.26︰0.59︰18.84)益生元 [49] 哈密大枣 HJP-2:4.590×104 D
HJP-3:6.986×104 D
HJP-4:1.951×105 DHJP-2:D-吡喃葡萄糖环
HJP-3/HJP-4:α型糖苷键
HJP-3:T-α-L-Ara,(1,5)-α-L-Ara,(1,4)-β-D-GalA,T-β-D-Gal,(1,2,4)-α-L-Rha(RG-Ⅰ)Rha-Ara-Gal-Glc-Man-Xyl-Fru-GalA
HJP-2=(0.56︰16.52︰10.74︰0.49︰0.26︰0.25︰0.82︰70.36)
HJP-3=(9.81︰24.15︰10.97︰0.2︰0.24︰0.83︰0︰53.8)
HJP-4=(2.24︰30.91︰7.60︰0.29︰0︰0.19︰1.78︰56.98)抗氧化 [25] 若羌枣 115 kD α和β构型共存 ZJPs-II-Ara-Rha-Glc-Xyl-Gal= (26.31︰8.62︰18.35︰15.72︰5.52)
抗肿瘤
抗氧化[30] 金昌枣 JCS-1:71.75 kD
JCS-2:357.39 kDα构型糖苷键 GalA-Gal-AraJCS-1=(39.04︰1.26︰1.39)
GalA-Man-Rha-Ara-GalJCS-2=(19.87︰2.07︰1.77︰1.65︰1.16)免疫调节
抗凝血[87] 哈密大枣
(黑枣)1.24×105 D BJP-4:(1,4)-α-L-GalA,(1,5)-α-L-Ara,(1,4)-β-D-Gal,(1,3)-GlcA,T-α-L-Ara,T-β-D-GalA GalA-Ara-Gal-Glc
(49.40︰33.54︰7.71︰7.19)调节肠道菌群
抗炎[88] 阜平大枣
(婆枣)JP-1:1.637×103 D
JP-2:1.799×103 D
JP-3:2.047×103 Dα和β型糖苷键连接 GalA-Ara JP-1=(4.18︰2.06)
GalA-Glu-Gal-Ara JP-2=(8.1︰1.97︰3.37︰3.88)
GalA-Gal-Ara JP-3=(6.41︰1.61︰3.4)免疫调节
调节肠道菌群[89] 大枣 89.90 kD - Ara-Gal-Glc-Rha-Man=(49.67︰29.01︰11.43︰5.38︰4.51) 调节肠道菌群 [46] 大枣 - 存在(1,3),(1,2),(1,6)糖苷键 Ara-Xyl-Glc-Gal-Man-Rha 抗衰老
抗氧化[20] 骏枣 153.3 kD 1,4-α-D-GalA(HG) GalA 抗炎 [66] 大枣 - - Man-Rib-GlcA-GalA-Glu-Xyl-Gal-Ara=
(5.3︰3.1︰3.6︰11.4︰13.4︰14.5︰23.4︰25.1)免疫调节 [90] 红枣 143108 /67633 D- Rha-Ara-Xyl-Man-Glc-Gal=(2.2︰7.8︰1.2︰0.2︰1.4︰3.8) 免疫调节
抗炎[59] 冬枣 45.3 kD (1,4)-α-L-GalA,(1,4)-α-L-GalA6Me(HG) GalA 抑制肝损伤 [40] 金丝小枣 1.4×105 D - Rha-Ara-Man-Gal=(13.8︰4︰3︰8) 抗补体 [60] 金丝小枣 JP:2.75×105D
Ac-JP:3.38×105D- Rha-Ara-Xyl-Man-Glc-Gal
JP=(105︰100︰161︰5︰10︰7)
Ac-JP=(39︰100︰121︰2︰5︰10)免疫调节
调节肠道菌群[48] 酸枣果肉 - β-糖苷键 Man-Rha-GlcA-GalA-Glc-Xyl-Gal-Ara (2.03︰3.74︰1.05︰17.64︰38.59︰3.36︰10.44︰23.16) 抑制肝损伤 [39] 酸枣仁 UAE/ZSS: 10000 /2.34 kD
HWE/ZSS:9550 /3.16 kD主要由α-构型组成
鼠李糖残基
含有o-乙酰基GlcA-Man-Rha-Glc-Gal-Xyl
UAE=(0.89︰15.42︰18.36︰0.2︰35.49︰29.33)
HWEl=(4.15︰11.91︰20.74︰0.48︰23.25︰39.47)免疫调节 [91] 酸枣仁 ZY-2:7.76 kD
ZY-3:10.71 kD
ZY-4:8.31 kDα与β构型糖苷键 Man-Rha-GlcA-GalA-Glc-Gal-Xyl-Ara
ZY-2=(7.22︰8.54︰3.89︰2.32︰4.89︰20.56︰39.67︰6.34)
ZY-3=(6.11︰7.32︰2.22︰4.15︰7.18︰35︰28︰54.17︰10)
ZY-4=(7.28︰7.47︰3.89︰5.15︰10︰16︰18.89︰44.66︰5)抗炎 [68] Glc:葡萄糖;Gal:半乳糖;Ara:阿拉伯糖;Man:甘露糖;Rha:鼠李糖;Xyl:木糖;GlcA:葡萄糖醛酸;GalA:半乳糖醛酸;Rib:核糖;Fru:果糖;Fuc:岩藻糖 -
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