nutritional quality

营养品质
  • 文章类型: Journal Article
    营养品质改善是任何水稻分子育种计划的最重要目标之一。种子贮藏蛋白(SSP)在确定任何谷物的营养质量方面具有更大的作用。大米含有相对平衡的氨基酸组成,SSP被分成白蛋白(ALB),球蛋白(GLO),谷醇溶蛋白(PRO)和谷蛋白(GLU)根据溶解度的差异。GLU进一步分为亚家族:GluA,GluB,GluC,和GluD取决于氨基酸的相似性。GLU蛋白占总蛋白含量的60-80%,由位于水稻基因组不同染色体上的15个基因编码。采用成簇的规则间隔短回文重复序列(CRISPR)/CRISPR相关蛋白9(Cas9)系统敲除非玄武米水稻PK386品种的Glu-B(LOC-Os02g15070)基因。突变体在目标区域中显示两个碱基对和三个碱基对突变。纯合突变体植物的总蛋白含量和GLU含量均降低,而GLO中的标高,ALB和PRO。此外,突变植物还显示出理化性质的降低,例如,总淀粉,直链淀粉和凝胶稠度。突变体和野生型的农艺特性均表现出非显着差异,并且突变体植物中的白垩白度百分比更高。从扫描电子显微镜获得的结果显示与野生型相比松散堆积的淀粉颗粒。基因表达分析显示,开花后5天(DAF)基因表达较低,10DAF,15DAF和20DAF比拟野生型。GUS亚细胞定位显示了种子中的染色,这进一步验证了从基因表达获得的结果。基于这些发现,可以得出结论,Glu-B基因在控制GLU含量方面具有重要作用,可用于育种计划以提高水稻的营养品质。并且可以作为具有高GLU含量的过敏患者的健康饮食。
    The nutritional quality improvement is among the most integral objective for any rice molecular breeding programs. The seed storage proteins (SSPs) have greater role to determine the nutritional quality of any cereal grains. Rice contains relatively balanced amino acid composition and the SSPs are fractioned into albumins (ALB), globulins (GLO), prolamins (PRO) and glutelins (GLU) according to differences in solubility. GLUs are further divided into subfamilies: GluA, GluB, GluC, and GluD depending on resemblance in amino acid. The GLU protein accounts for 60-80% of total protein contents, encoded by 15 genes located on different chromosomes of rice genome. The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system was employed to knockout Glu-B (LOC-Os02g15070) gene in non-basmati rice PK386 cultivar. The mutant displayed two base pair and three base pair mutation in the targeted regions. The homozygous mutant plant displayed reduction for both in total protein contents and GLU contents whereas, elevation in GLO, ALB and PRO. Moreover, the mutant plant also displayed reduction in physio-chemical properties e.g., total starch, amylose and gel consistency. The agronomic characteristics of both mutant and wild type displayed non-significant differences along with increase in higher percentage of chalkiness in mutant plants. The results obtained from scanning electron microscopy showed the loosely packed starch granules compared to wild type. The gene expression analysis displayed the lower expression of gene at 5 days after flowering (DAF), 10 DAF, 15 DAF and 20 DAF compared to wild type. GUS sub-cellular localization showed the staining in seed which further validated the results obtained from gene expression. Based on these findings it can be concluded Glu-B gene have significant role in controlling GLU contents and can be utilized in breeding programs to enhance the nutritional quality of rice, and may serve as healthy diet for patient allergic with high GLU contents.
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  • 文章类型: Journal Article
    目的:分析早餐谷物市场,以帮助医疗保健专业人员指导父母为孩子选择健康产品。研究设计:对最大超市提供的早餐谷物的观察研究,法国的折扣店和有机连锁店,比利时和卢森堡。方法:使用三个指标分析营养质量:Nutri-Score(初始和修改版本),世卫组织欧洲营养概况模型,还有Nova.结果:共列出645个产品;559个,不包括重复项。共有28.8%销售给儿童,并构成“儿童”谷物组,62.1%的谷物是麦片,燕麦和其他谷物片(MOCF),54.9%是“有机”。研究表明,“儿童”谷物的营养状况较差:Nutri-ScoreD的比例更高,含糖量较高,较低的纤维含量,与世卫组织欧洲营养概况模型的一致性较低,加工比例较高。另一方面,MOCF和“有机”产品通常具有更好的营养成分:更少的糖,更多的纤维,更多Nutri-ScoreA,更少的Nutri-ScoreD和更少的超加工产品。结论:因此,父母应选择包装上不涉及儿童的谷物。
    Objective: Analyse the breakfast cereal market to help to help healthcare professionals to guide parents in choosing healthy products for their children. Study design: Observational study of the breakfast cereals available in the biggest supermarkets, discount stores and organic chains in France, Belgium and Luxembourg. Methods: An analysis of nutritional qualities using three indicators: Nutri-Score (initial and modified version), WHO Europe nutrient profile model, and Nova. Results: 645 products were listed; 559 excluding duplicates. A total of 28.8% are marketed to children and make up the group of \"children\'s\" cereals, 62.1% of cereals are Muesli, Oats and other cereal flakes (MOCF), and 54.9% are \"organic\". The study shows that \"children\'s\" cereals have a poorer nutritional profile: a higher proportion of Nutri-Score D, higher sugar content, lower fibre content, less conformity with the WHO Europe nutrient profile model and a higher proportion ofultra-processed. On the other hand, MOCF and \"organic\" products generally have a better nutritional profile: less sugar, more fibre, more Nutri-Score A, less Nutri-Score D and fewer ultra-processed products. Conclusions: Parents should therefore opt for cereals that do not bear any reference to children on the packaging.
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  • 文章类型: Journal Article
    调查不同零件质量的差异(背面,尾部肌肉,和鱼皮)来自池塘和稻田文化的Opsariichthysbidens,在营养成分方面进行了比较研究,挥发性风味特征和肠道微生物群。详细来说,纹理,游离氨基酸,进一步评估脂肪酸。结果表明,水分含量,O.bidens皮肤中的粗蛋白和粗脂肪含量高于背部和尾部肌肉,无论育种模式如何。稻田养殖的鱼蛋白质含量高于池塘养殖的鱼,虽然与池塘养殖的鱼相比,稻田养殖的鱼的脂肪含量明显较低,尤其是在后部和尾部。气相色谱-质谱(GC-MS)检测43种挥发性成分,最多含有18种醛,浓度最高的是非醛。与池塘文化相比,稻田养殖的鱼显示出更丰富的风味成分和气味活性化合物。稻田养殖鱼中DHA(二十二碳六烯酸)和EPA(二十碳五烯酸)的总含量高于池塘组,而氨基酸组成无显著差异(p>0.05)。肠道菌群的比较和聚类分析显示,来自两个水产养殖系统的O.bidens的肠道菌群存在显着差异。然而,肠道微生物组和肉质之间的内在相关性将在进一步的研究中进一步强调。本研究可为选择适宜的水产养殖模式开发优质水产品提供理论参考。
    To investigate difference in the quality of the different parts (back, tail muscles, and fish skin) of Opsariichthys bidens from pond and rice field cultures, a comparative study was conducted in terms of nutritional composition, volatile flavor profiles and gut microbiota. In detail, the texture, free amino acids, fatty acids were further assessed. The results suggested that the moisture content, crude protein and crude fat content in the skin of O. bidens are higher than those in the back and tail muscles, regardless of breeding modes. The fish cultured in the rice field had a higher protein content than those from the pond culture, while the fat content of the rice field-cultured fish was significantly low compared to the fish from the pond culture, especially in the back and tail parts. A total of 43 volatile components were detected by Gas Chromatography-Mass Spectrometry (GC-MS), with a maximum of 18 types of aldehydes and the highest concentration being nonanal. Compared to pond cultures, the fish from the rice field cultures showed more abundant flavor composition and odor-active compounds. The total content of DHA (Docosahexaenoic Acid) and EPA (Eicosapentaenoic Acid) in the rice field-cultured fish was higher than that of the pond group, while no significant disparity in amino acid composition was observed (p > 0.05). Comparative and clustering analyses of gut microbiota revealed notable discrepancies in the gut microbiota of O. bidens from two aquaculture systems. However, an inherent correlation between the gut microbiome and meat quality would be further emphasized in further studies. This study can offer a theoretical reference for the development of high-quality aquatic products by selecting the appropriate aquaculture models.
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  • 文章类型: Journal Article
    先前的研究已经揭示了Awaze糊的微生物质量。然而,有限的报告描述了各种香料对Awaze糊状物质量的影响。使用混合物设计方法来确定合适的比例,有15个独立变量的实验点,包括RP(60-90%),GA(10-30%),RO(5-20%),和GI(5-10%)。技术功能特性,颗粒大小,抗氧化活性(DDPH自由基测定),近似组成,铁(Fe),锌(Zn)含量,粘度,硬度,并对Awaze糊的微生物质量进行了评价。所制备的Awaze糊状物表现出一系列的特性,抗氧化活性(DDPH自由基测定)范围从11.86%到62.5%,粗蛋白含量从6.18%到16.22%,粗脂肪从5.7%到12.6%,粗纤维从16.86%到29.06%,总灰分含量从6.32%到9.94%,总碳水化合物从41.79%到60.61%,能量从264.3到329.2千卡。,铁(Fe)含量从35.59到108.82mg/100g,锌(Zn)含量从1.72到26.93mg/100g,粘度从65.5到125.5cps,硬度从8.48到55.09克,酵母和霉菌计数从0.83到2.04logcfu/g,细菌总数从1.53到2.61logcfu/g。在近似组成中观察到显著差异(p<0.05),技术功能特性,颗粒大小,抗氧化活性,物理化学性质,和Awaze糊配方中的微生物学特性。与对照样品相比,所选择的配方显示出统计学上显著的差异(p<0.05)。该配方含74.79%RP,10%GA,10.2%RO,根据评估的参数,5.0%GI被确定为最佳配方,可取性为0.73。这种优选的Awaze糊状物的孔隙率为28.12%,粒度为16.49μm,抗氧化活性63.63%,粗蛋白含量为17.28%,铁(Fe)含量为98.06mg/100g,锌(Zn)含量为15.04mg/100g。因此,这种最佳的成分混合物可用于生产消费者接受的Awaze糊状物。
    Previous studies have revealed the microbial quality of Awaze paste. However, limited reports describe the effect of individual spices on Awaze paste quality. A mixture design approach was used to determine the appropriate proportions, with 15 experimental points for independent variables including RP (60-90 %), GA (10-30 %), RO (5-20 %), and GI (5-10 %). The techno-functional properties, particle size, antioxidant activity (DDPH radical assay), proximate composition, iron (Fe), zinc (Zn) content, viscosity, hardness, and microbiological quality of Awaze paste were assessed. The prepared Awaze paste showed a range of characteristics, with antioxidant activity (DDPH radical assay) ranging from 11.86 % to 62.5 %, crude protein content from 6.18 % to 16.22 %, crude fat from 5.7 % to 12.6 %, crude fiber from 16.86 % to 29.06 %, total ash content from 6.32 % to 9.94 %, total carbohydrate from 41.79 % to 60.61 %, energy from 264.3 to 329.2 k cal. , iron (Fe) content from 35.59 to 108.82 mg/100g, zinc (Zn) content from 1.72 to 26.93 mg/100g, viscosity from 65.5 to 125.5 cps, hardness from 8.48 to 55.09 g, yeast and mold count from 0.83 to 2.04 log cfu/g, and total bacterial count from 1.53 to 2.61 log cfu/g. Significant differences (p < 0.05) were observed in proximate composition, techno-functional properties, particle size, antioxidant activity, physicochemical properties, and microbiological characteristics among the formulations of Awaze paste. The selected formula showed a statistically significant difference (p < 0.05) compared to the control sample. The formulation containing 74.79 % RP, 10 % GA, 10.2 % RO, and 5.0 % GI was determined to be the optimal formula with a desirability of 0.73, based on the evaluated parameters. This preferred Awaze paste had a porosity of 28.12 %, particle size of 16.49 μm, antioxidant activity of 63.63 %, crude protein content of 17.28 %, iron (Fe) content of 98.06 mg/100g, and zinc (Zn) content of 15.04 mg/100g. Therefore, this optimal blend of ingredients could be used to produce a consumer accepted Awaze paste.
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  • 文章类型: Journal Article
    本研究使用凡纳滨对虾比较了光伏渔业养殖模型(PM)和普通池塘养殖模型(CM)中饲养的动物的肌肉营养品质和挥发性风味化合物。氨基酸,脂肪酸,使用自动氨基酸分析仪和顶空固相微萃取(HS-SPME)结合GC/MS对挥发性风味物质进行鉴定和分析。两种培养模型在一般营养素方面没有显着差异,矿物质含量,和南美白对虾肌肉中的氨基酸成分。在PM组中,风味氨基酸占总氨基酸的比例较高。根据氨基酸评分(AAS)和化学评分(CS),发现蛋氨酸和胱氨酸是肌肉样品中的第一限制性氨基酸。两种模型的必需氨基酸指数(EAAI)值约为77,表明高质量的蛋白质。肌肉含有九种脂肪酸,PM组显示出单不饱和脂肪酸和总脂肪酸的水平显着升高。在两个模型中总共鉴定了23种挥发性风味化合物。1-nonanal的内容,正十三烷,在PM中培养时,α-松油醇较高。相反,己醛的含量,2-乙基己醇,PM组的二戊烯含量较低。光伏渔业养殖模式具有通过光伏发电增加收入的潜力。此外,本研究发现凡纳滨对虾脂肪酸组成在PM中得到改善,不损害肌肉成分或风味。研究结果为评价不同培养模式下的南美白对虾肉质提供了理论依据,为PM的推广提供了数据支持和指导。
    This study used Litopenaeus vannamei to compare the muscle nutritional quality and volatile flavor compounds of animals raised in the photovoltaic fishery culture model (PM) and the common pond breeding model (CM). Amino acids, fatty acids, and volatile flavor substances were identified and analyzed using an automatic amino acid analyzer and headspace solid phase microextraction(HS-SPME) combined with GC/MS. There were no significant differences between the two culture models in terms of general nutrients, mineral contents, and amino acid compositions in the muscles of L. vannamei. In the PM group, the proportion of flavor amino acids in total amino acids was higher. Based on the amino acid score (AAS) and chemical score (CS), it was found that methionine and cystine were the first limiting amino acids in the muscle samples. The essential amino acid index (EAAI) value was approximately 77 for both models, indicating high-quality proteins. The muscles contained nine types of fatty acids, with the PM group showing significantly higher levels of both monounsaturated and total fatty acids. A total of 23 volatile flavor compounds were identified in both models. The contents of 1-nonanal, n-tridecane, and alpha-terpineol were higher when cultured in the PM. Conversely, the contents of hexanal, 2-ethylhexanol, and dipentene were lower in the PM group. The photovoltaic fishery culture model has the potential to enhance income through photovoltaic power generation. In addition, this study found that the fatty acid composition of L. vannamei was improved in the PM, without compromising muscle composition or flavor. These results provide a theoretical basis for evaluating the meat quality of L. vannamei under different culture models and offer data to support and guide the promotion of the PM.
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  • 文章类型: Journal Article
    辣椒(辣椒属。)是全球重要的水果蔬菜,它是人类丰富的矿物质来源。然而,辣椒果实矿物成分的时空分布和影响这种变化的因素在全球范围内仍然未知。对140种出版物进行全球荟萃分析,提供649、562、690、811个数据点,以量化和评估营养质量,包括钾(K),镁(Mg),铁(Fe)和锌(Zn),辣椒果实及其影响变量。分析表明,K的全球平均值,Mg,辣椒果实中的铁和锌含量分别为20-25gkg-1,1-1.5gkg-1,80-100mgkg-1和20-40mgkg-1。在过去的十年中,胡椒果实的营养质量呈下降趋势,特别是铁和锌。And,在欠发达地区,所有这四种营养素的浓度都处于较低水平,尤其是在非洲。我们的结果表明,蔬菜“青椒”含有更多的钾,Mg,铁和锌比“辣椒”用作香料。K的浓度,Mg,Fe和Zn随果实产量增加而增加,但Fe和Zn随单果重的增加而减少。年平均温度10℃-20℃时营养品质最佳,当平均年降水量<500毫米时,受到不利影响。在pH6.5-7.5下生产的辣椒果实具有较高的果实K浓度,而酸性土壤(pH<6.5)则有利于较高的Fe和Zn浓度。较高的土壤有机质(SOM)通常可以改善辣椒的营养质量。我们的结果表明,需要系统地选择优良品种和土壤-作物系统的土壤改良(调节pH和SOM),以实现辣椒果实的更高营养品质。
    Pepper (Capsicum spp.) is an important fruit vegetable worldwide, and it is a rich dietary source of minerals for human being. Yet, the spatio-temporal distribution of pepper fruit mineral composition and the factors influencing such variations at global scale remain unknown. A global meta-analysis of 140 publications providing 649, 562, 690, 811 datapoints was conducted to quantify and evaluate the nutritional quality, comprising potassium (K), magnesium (Mg), iron (Fe) and zinc (Zn), of pepper fruits and its influencing variables. The analysis showed that the global average of K, Mg, Fe and Zn content in pepper fruits was 20-25 g kg-1, 1-1.5 g kg-1, 80-100 mg kg-1, and 20-40 mg kg-1, respectively. There had been a downward trend in pepper fruit nutritional quality over the last decade, especially for Fe and Zn. And, the concentration of all these four nutrients were at lower levels in less developed regions, especially in Africa. Our results showed that the vegetable \"green pepper\" contains more K, Mg, Fe and Zn than the \"hot pepper\" used as spice. The concentration of K, Mg, Fe and Zn were increased with fruit yield but that of Fe and Zn were decreased with increase in single fruit weight. Nutritional quality was optimal at mean annual temperature of 10 ℃ - 20 ℃, and was adversely affected when mean annual precipitation was < 500 mm. Pepper fruits produced at pH 6.5-7.5 had higher fruit K concentration while acidic soils (pH<6.5) favored higher Fe and Zn concentrations. The higher soil organic matter (SOM) generally improved the nutritional quality of the pepper. Our results suggest that systematic selection of superior varieties and soil amelioration (adjusting pH and SOM) of the soil-crop system are needed to achieve higher nutritional quality of pepper fruit.
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  • 文章类型: Journal Article
    微酸性电解水(SAEW)对储存性能的影响,质量属性,研究了荔枝的活性氧(ROS)代谢。结果表明,SAEW处理的荔枝比对照荔枝具有更好的质量属性和耐贮性。在储存第5天,商业上可接受的对照荔枝果实率为42%,虽然SAEW处理的荔枝显示出59%的商业上可接受的水果,果皮褐变指数降低21%,失重率比对照荔枝低13%。此外,与对照荔枝相比,SAEW处理的荔枝显示出更高的SOD活性,CAT和APX,GSH水平较高,AsA,DPPH自由基清除能力,减少功率,但较低的O2-·生成率,较低水平的H2O2和MDA。这些结果表明,SAEW处理可以提高抗氧化能力和ROS清除能力,减少ROS的产生和积累,和较低的膜脂质过氧化,从而保留了荔枝的质量属性和可储存性。
    Effects of slightly acidic electrolyzed water (SAEW) on the storability, quality attributes, and reactive oxygen species (ROS) metabolism of litchis were investigated. Results showed that SAEW-treated litchis presented better quality attributes and storability than control litchis. On storage day 5, the commercially acceptable fruit rate of control litchis was 42%, while SAEW-treated litchis displayed 59% higher rate of commercially acceptable fruit, 21% lower pericarp browning index, and 13% lower weight loss percentage than control litchis. Additionally, compared to control litchis, SAEW-treated litchis demonstrated higher activities of SOD, CAT and APX, higher levels of GSH, AsA, DPPH radical scavenging ability, and reducing power, but lower O2 -· generation rate, lower levels of H2O2 and MDA. These findings indicated that SAEW treatment could elevate antioxidant capacity and ROS scavenging ability, reduce ROS production and accumulation, and lower membrane lipid peroxidation, thereby retaining the quality attributes and storability of litchis.
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  • 文章类型: Journal Article
    籽粒外观和营养品质是水稻营销的关键特征。然而,如何同时改善大米的籽粒外观(细长的籽粒和低白垩度)和营养品质(改善蛋白质和氨基酸含量)仍然是一个重大挑战。这里,我们表明,敲除水稻异丙基苹果酸合酶基因OsIPMS1和OsIPMS2可以改善籽粒外观和营养品质。我们发现OsIPMS1与OsIPMS2直接相互作用形成异二聚体。同时,我们观察到OsIPMS1和OsIPMS2会影响先前报道的基因的表达,这些基因与发育中的圆锥花序和谷物中的谷物大小和营养品质的确定有关。此外,我们表明,Osipms1/2双突变体在粳稻(乌云耕23)和in稻(黄花站)品种的精米中表现出显着改善的籽粒外观和营养品质。我们的发现表明,OsIPMS是选育水稻品种的有用靶基因,具有营销吸引力和有益于健康的特性。
    Grain appearance and nutritional quality are critical traits for rice marketing. However, how to simultaneously improve grain appearance (slender grain and low chalkiness) and nutritional quality (improved protein and amino acid contents) in rice remains a major challenge. Here, we show that knocking out rice isopropylmalate synthase genes OsIPMS1 and OsIPMS2 can improve both grain appearance and nutritional quality. We find that OsIPMS1 directly interacts with OsIPMS2 to form heterodimers. Meanwhile, we observe that OsIPMS1 and OsIPMS2 influence the expression of genes previously reported to be involved in the determination of grain size and nutritional quality in the developing panicles and grains. Furthermore, we show that Osipms1/2 double mutants exhibit significantly improved grain appearance and nutritional quality in polished rice in both the japonica (Wuyungeng 23) and indica (Huanghuazhan) varieties. Our findings indicate that OsIPMS is a useful target gene for breeding of rice varieties appealing for marketing and with health-benefiting properties.
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  • 文章类型: Journal Article
    黄花菜(Hemerocalliscitrina)是百合科Hemerocallis属的多年生草本植物。它也是一种重要的经济作物,被广泛种植。黄花菜有营养,药用和观赏价值。研究文献表明,黄花菜是一种富含可溶性糖的优质食品原料,抗坏血酸,黄酮类化合物,膳食纤维,类胡萝卜素,矿物元素,多酚和其他营养素,对清热利尿有效,消除瘀伤和止血,加强胃和大脑,降低血清胆固醇水平.本文综述了黄花菜的主要营养成分,总结了黄花菜的干燥过程。此外,由于活性成分的存在,黄花菜还具有多种有益于人体健康的生物活性。本文还重点介绍了黄花菜的营养品质,蔬菜干复水技术及黄花菜干的研究进展。最后,介绍了国内外黄花菜尚未开发的分子机理和功能研究现状,以期为黄花菜的营养品质研究和干制加工产业提供参考。
    Daylily (Hemerocallis citrina) is a perennial herb of the genus Hemerocallis of Liliaceae. It is also an economically important crop and is widely cultivated. Daylily has nutritional, medicinal and ornamental values. The research literature shows that daylily is a high-quality food raw material rich in soluble sugars, ascorbic acid, flavonoids, dietary fiber, carotenoids, mineral elements, polyphenols and other nutrients, which are effective in clearing heat and diuresis, resolving bruises and stopping bleeding, strengthening the stomach and brain, and reducing serum cholesterol levels. This article reviews the main nutrients of daylily and summarizes the drying process of daylily. In addition, due to the existence of active ingredients, daylily also has a variety of biological activities that are beneficial to human health. This article also highlights the nutritional quality of daylily, the research progress of dried vegetable rehydration technology and dried daylily. In the end, the undeveloped molecular mechanism and functional research status of daylily worldwide are introduced in order to provide reference for the nutritional quality research and dried processing industry of daylily.
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  • 文章类型: Journal Article
    背景:长效杀虫剂掺入网(LLIN)已用于递送接触杀虫剂,作为食品设施中储存的产品昆虫害虫的综合害虫管理工具。尽管已知食物的存在可以改善暴露后的昆虫恢复,目前尚不清楚食品营养质量是否起作用。这里,红面粉甲虫Triboliumcastaneum成虫暴露于两种市售的LIN,Carifend(活性成分α-氯氰菊酯)和D-Terrence(溴氰菊酯),然后转移到含有不同营养质量的食物的培养皿中(例如,面粉与非营养纤维素的0-100%比率)。我们调查了营养的影响,LLIN类型,和暴露后恢复的暴露时间,死亡率,和流动性。
    结果:暴露2-168小时后,Carifend和D-Terrence的Castaneum成年人的即时死亡率为0.5%至91.0%,D-Terrence为0%至75.3%。成人恢复和延迟死亡率显著受营养质量的影响,LLIN类型,曝光时间,和恢复时间。对于这两种LLINs,成人恢复随着时间的推移而增加,随着营养质量的提高和暴露时间的减少,回收率更高,死亡率更低的趋势。此外,与10分钟相比,在Carifend或D-Terrence暴露30、60或90分钟后,成人的活动能力降低了数倍。
    结论:这项研究表明,营养显著调节LLIN对蓖麻的疗效,从而加强了为食品设施管理者实施严格卫生协议的理由。©2024化学工业学会。本文由美国政府雇员贡献,他们的工作在美国的公共领域。
    BACKGROUND: Long-lasting insecticide-incorporated netting (LLIN) has been used to deliver contact insecticides as an integrated pest management tool for stored product insect pests in food facilities. Although the presence of food is known to improve insect recovery after exposure, it is not clear whether food nutritional quality plays a role. Here, the red flour beetle Tribolium castaneum adults were exposed to two commercially available LLINs, Carifend (active ingredient α-cypermethrin) and D-Terrence (deltamethrin), then transferred to Petri dishes with foods with varying nutritional quality (e.g., 0-100% ratios of flour to non-nutritive cellulose). We investigated the effects of nutrition, LLIN type, and exposure time on post-exposure recovery, mortality, and mobility.
    RESULTS: After exposure for 2-168 h, the immediate mortality of T. castaneum adults ranged from 0.5% to 91.0% with Carifend and 0% to 75.3% with D-Terrence. Adult recovery and delayed mortality were significantly affected by nutritional quality, LLIN type, exposure time, and recovery time. For both LLINs, adult recovery increased over time, with a trend for higher recovery and lower mortality with increasing nutritional quality and decreasing exposure time. In addition, adult mobility decreased multiple-fold after Carifend or D-Terrence exposure for 30, 60 or 90 min compared to 10 min.
    CONCLUSIONS: This study shows nutrition significantly modulates the efficacy of LLIN against T. castaneum, and thus strengthens the rationale for implementing stringent sanitation protocols for food facility managers. © 2024 Society of Chemical Industry. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.
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