营养食谱之胎儿早期发育过程及B超

营养食谱之胎儿早期发育过程及B超 胎儿早期发育过程及B超 妊娠是一个复杂的过程，卵子受精后，进入宫腔，胚胎及附属物迅速生长发育直至成熟的过程中，每个孕周都会有不同的变化。在孕早期的各个周里你的小宝宝会是什么样呢，下面的文章会详细告诉你。 4周:胎儿只有0(2厘米。受精卵刚完成着床，羊膜腔才形成，体积很小。超声还看不清妊娠迹象。 5周:胎儿长到0(4厘米，进入了胚胎期，羊膜腔扩大，原始心血管出现，可有搏动。B超可看见小胎囊，胎囊约占宫腔不到1/4，或可见胎芽。 6周:胎儿长到0(85厘米，胎儿头部、脑泡、额面器官、呼吸、消化、神经等器官分化，B超胎囊清晰可见，并见胎芽及胎心跳。 7周:胎儿长到1(33厘米，胚胎已具有人雏形，体节已全部分化，四肢分出，各系统进一步发育。B超清楚看到胎芽及胎心跳，胎囊约占宫腔的l,3。 8周:胎儿长到1(66厘米，胎形已定，可分出胎头、体及四肢，胎头大于躯干。B超可见胎囊约占官腔1,2，胎儿形态及胎动清楚可见，并可看见卵黄囊。 9周:胎儿长到2(15厘米，胎儿头大于胎体，各部表现更清晰，头颅开始钙化、胎盘开始发育。B超可见胎囊几乎占满宫腔，胎儿轮廓更清晰，胎盘开始出现。 10周:胎儿长到2(83厘米，胎儿各器官均已形成，胎盘雏形形成。B超可见胎囊开始消失，月芽形胎盘可见，胎儿活跃在羊水中 。 11周:胎儿长到3(62厘米，胎儿各器官进一步发育，胎盘发育。B超可见胎囊完全消失，胎盘清晰可见。 12周:胎儿长到4.58厘米，外生殖器初步发育，如有畸形可以表现，头颅钙化更趋完善。颅骨光环清楚，可测双顶径，明显的畸形可以诊断，此后各脏器趋向完善。 胎儿发育早期，要科学安排饮食才能保证正常发育。 一、合理的膳食调配 胎儿发育早期，胚胎各器官的形成发育需要各种营养素，孕妇的饮食应满足胚胎对各种营养素的需要。孕妇在食物的种类和数量方面应加以恰当搭配，组成平衡膳食。以下四类食品，可轮流选用同一类的不同食物。 1、粮谷类食物，包括米、面、杂粮、赤豆、绿豆及含脂肪多的坚果类。这些食物可提供能量，供给蛋白质、无机盐、B族维生素、膳食纤维。每日最低摄入量应在200克以上。 2、蔬菜、水果类食物。它们主要供给孕妇维生素和无机盐，如胡萝卜素、维生素C、维生素B2、钙和铁。 3、动物性食品，如猪、牛、羊、鸡、鸭、鹅肉及肝、肾、心、肚，水产类、蛋类。这些食物蛋白质含量高，容易消化吸收，是最重要的优质蛋白质的来源，还可提供一定的脂肪、脂溶性维生素和无机盐。 4、乳类和乳制品。它们是营养最完全的一类食品，富含蛋白质和容易吸收的钙。孕妇每日应尽可能保证摄入乳类和乳制食品200克。 二、保证优质蛋白质的供给 the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) 妊娠早期孕妇蛋白质的摄入不能低于非妊娠期的摄入量，且应选择易消化、吸收、利用率高的优质蛋白质，如肉类、乳类、蛋类、鱼类及豆制品等。蛋白质每日至少摄入40克，才能维持孕妇的蛋白质平衡。 三、适当增加能量的摄入 孕早期，为孕期提供能量的碳水化合物、脂肪供给不足，孕妇会一直处于“饥饿”状态，可导致胎儿大脑发育异常，出生后智商下降。碳水化合物主要来源于蔗糖、面粉、大米、红薯、土豆、山药等，孕妇每天应摄入150克以上的碳水化合物。脂肪主要来源于动物油和植物油，植物油中的芝麻油、豆油、花生油等是能量的主要提供者，能满足母体和胎儿对脂肪酸的需要，植物油是烹调的理想用油。 四、确保无机盐、维生素的供给 无机盐和维生素对保证早期胚胎器官的形成发育有重要作用。含锌、钙、磷、铜高的食物有奶类、豆类、肉类、蛋类、花生、核桃、海带、木耳、芝麻等，富含B族维生素的食物主要来源于谷类粮食。 怀胎第1个月，孕妈妈营养 要加强营养，多吃富含叶酸的食品，如樱桃、桃、李、杏、山楂等新鲜水果中都含有丰富的叶酸。叶酸是人体三大造血原料之一，促进红细胞的生成，孕早期如果缺乏叶酸，会影响胎儿神经系统的正常发育，导致脊柱裂或无脑儿等神经管畸形。因此美国疾病控制中心已经建议:育龄的女性每天都应补充0.4毫克的叶酸，怀孕后的女性每天的摄取量应达到1毫克左右。 这个时期在补充叶酸的同时，也应该加强多种微量元素的吸收，因为微量元素锌、铜等也参与了中枢神经系统的发育。尤其是锌的需求量大大增加，目前孕妇缺锌的现象非常普遍，为了避免孕期由于微量元素的缺乏而造成的神经系统发育障碍，你在均衡饮食的同时也可以适当的吃一些香蕉、动物内脏，还有瓜子、花生、松子等坚果类食品，这些食品中富含锌元素。 怀胎第1个月，孕妈妈起居 (一)初次怀孕的女性，在身体和心理上，都会发生一连串的变化，因为是第一次，孕妇自己往往还浑然不觉，而且原本没有生育，或是根本不了解身体的反应，以致误食药物或疏忽了生活上的细节，都很可能对胎儿和母体产生不良的影响。 (二)怀孕初期可能会有类似感冒的症状，若胡乱买些药吃，不仅不能达到治疗的效果，说不定还会生出畸形儿呢～所以平时在任何情况下，都不要任意服用成药，最安全的办法是去看医生，找出病因。不要随意作x光照射，在怀孕约一个月时，会有孕吐的现象，应多准备一些可以缓和孕吐情况的食物，如酸梅、水果等。 (三)孕妇除了注意均衡合理的饮食之外，万万不可忽视空气、水和阳光的重要性，它们所提供的营养是其它物质无法替代的。还应注意平时的生活起居，一个良好的生活习惯会保证胎儿的正常发展。 the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) (四)为了减少畸形儿出生的概率，孕妇在孕3个月以内，应避免洗过热的淋浴，水温要控制在39度以下，尤其不要洗盆浴，避免在浴缸里长时间浸泡腹部。洗澡时间也不宜太长，最多不超过20分钟。此外，还应尽量避免高温作业或剧烈运动。 怀孕第1个月，胎儿的发育 精子在女性输卵管内能生存1-3天，卵子能生存1天左右，然后形成一个新的细胞，这个细胞称为受精卵或孕卵，这个过程称为受精。 进入第2周后期，根据基础体温你会发现你已经进入排卵期，现在就应该做好准备了。大约在月经周期的第5-13天卵泡成熟，这时子宫内膜增生，排卵后大约在月经周期的第14,23天时是黄体素成熟阶段，这时子宫内膜继续增厚，受精卵经过3,4天的运动到达子宫腔，在这个过程中由一个细胞分裂成多个细胞，并成为一个总体积不变的实心细胞团，称为桑胚体。 孕4周胚胎已经在子宫内“着床”，或称“植入”。完成着床大概需要4,5天。着床后的胚胎慢慢长大，这时大脑的发育已经开始，受精卵不断地分裂，一部分形成大脑，另一部分则形成神经组织。这时要特别注意加强营养，丰富的营养会给脑细胞和神经系统一个良好的成长环境。 怀孕第1个月，需做哪些检查 你可以自己测算排卵周期，即月经周期。主要方法是基础体温法，即每天早晨醒来后身体不作任何运动，用体温表测出体温。坚持做一个月后，就可以制成一个曲线的基础体温表。一般排卵期的体温会升高0.3-0.5度，根据基础体温表，在排卵期你就可以做好迎接新生命的准备了。 怀孕第二个月 孕妈妈营养 叶酸缺乏可能会引起先天性神经器官畸形，即脊柱裂、无脑儿、脑膜膨出。因此，孕妇一定要纠正偏食的不良习惯，常食和多食富含叶酸的食物，如菠菜、牛奶、动物肝脏、土豆、水果、西红柿等。 怀孕第二个月孕妈妈起居 进入第5周后，你的“好朋友”还没光顾，现在你的心情是欣喜，还是紧张,一些有计划怀孕的准妈妈可能已经发觉身体的异常，现在你可以去医院做早孕检the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) 查，确定一下自己是否怀孕了。 进入第6周时，你的妊娠反应开始明显起来。 你的身体已经开始发生变化，怀孕的症状也出现了。由于雌激素与孕激素的刺激作用，你的胸部感到胀痛、乳房增大变软、乳晕有节突出，你会时常疲劳、犯困而且排尿频繁。在这个星期你会象大多数女性一样，有恶心的感觉，有时候不仅是在早晨，整个一天你都会随时呕吐。这些令人心烦的症状都是正常的，这只不过是孕早期的常见现象，大约在三个月之后你的恶心与晨吐就会结束。为了克服晨吐症状，早晨你可以在床边准备一杯水，或一小块水果，它们会帮你抑制强烈的恶心。 怀孕进入第7周了，早晨醒来后你会感到难以名状的恶心，而且嘴里有一种说不清的难闻味道，有时象汽油或其它化学原料的感觉，这是怀孕初期大多数孕妇都会遇到的情况。 目前你的外表看不出有什么改变，但在你的体内却发生着翻天覆地的变化。现在你随时可能有饥饿的感觉，而且常常饥不择食地吞咽各种食物。在这种大吃大喝的补充下，你的体态很快就会有改观，但是不要过多地考虑体形，因为目前这几周是胎儿发展的关键时期，维持胎儿生命的器官正在生长，所以更应注意营养。 进入第8周后，你的腹部现在看上去仍很平坦，但在你的子宫已有明显变化，怀孕前你的子宫就象一个握紧的拳头，现在它不但增大了，而且变得很软。阴道壁及子宫颈因为充血而变软，呈紫蓝色，子宫峡部特别软。当你的子宫成长时，你的腹部会感到有些痉挛，有时会感到瞬间的剧痛。 这时应注意不要养猫、狗等宠物，因为猫身上携带着弓形虫病菌，孕妇如果感染了弓形虫，不仅会影响胎儿的正常发育，还有可能造成流产、早产及先天畸形。而狗身上寄生的一种“慢性局灶性副粘液病毒”，如果进入人体的血液循环后会侵害骨细胞，导致骨质枯软变形，引起畸形骨炎。 孕妇在此时期非常容易流产，必须特别注意，不应搬运重物或激烈运动，外出次数也就尽可能减少。不可过度劳累，多休息，睡眠要充足，并应控制性生活。在感到特别疲劳时不要洗澡，而要及早卧床休息。 the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) 怀孕第3个月孕妈妈营养 (一)由于早孕反应，以及增大的子官压迫胃和其他消化器官，孕妇常会出现消化不良，食欲不振等情况。这时孕妇除了少吃多餐外，在饮食结构方面应挑选容易消化的、新鲜的食物，尽量避免吃油炸、辛辣的食物。 (二)维生素B6在麦芽糖中含量最高，每天吃1?2勺麦芽糖不仅可以防止妊娠呕吐，而且使孕妇精力充沛。富含维生素B6的食品还有香蕉、马铃薯、黄豆、胡萝卜、核桃、花生、菠菜等植物性食品。动物性食品中以瘦肉、鸡蛋、鱼等含量较多。 怀孕第3个月孕妈妈起居 此时也容易流产，生活细节上尤其留意小心。不宜剧烈运动，也不宜搬重物和长途旅行，上下楼梯要平稳，尤其应随时注意腹部不要受到压迫。 上班的妇女，应保持愉快的工作情绪，以免因心理负担过重，压力太大，而影响胎儿的发育。 为了预防便秘，最好养成每日定时如厕的习惯，可在清晨起床后饮用凉牛奶 或凉白开水。下腹不可受寒，注意时时保暖，不熬夜，保持有规律的生活。夫妻在这阶段最好不要行房，并尽量避免采用压迫到腹部的体位，时间越短越好。 如果发生下腹疼痛或少许出血时，可能是流产的征兆，应立刻去医院就诊。 如果出现怀孕早期的剧烈呕吐，孕妇应及早到医院请医生进行必要的治疗，否则对胚胎的发育与成长极为不利，同时可能影响孕妇自身的健康。 怀孕第3个月胎儿发育 8周过去了，胚胎从现在开始可以称为“胎儿”了，现在的胎儿尺寸大约有25毫米，而且胎儿许多的位置都有改变，如胚胎期的小尾巴不见了等。现在所有的器官、肌肉、神经开始工作。手部从手腕开始变得稍有些弯曲，双脚开始摆脱蹼状的外表，眼帘开始覆盖住眼睛。 现在你需要喝大量的含微量氟的水，这样你会得到充足的氟化物，钙和磷将保证你的胎儿的牙齿和骨骼很好的发育。 孕10周时，有些孕妇可能会对这种变化莫测的情绪感到不安，但这都是正常的，是孕期雌激素作用的结果。 到本周末，胎儿的身长会达到40厘米。但是用B超还不能分辨性别，现在胎儿的生殖器官开始发育，胎儿已经很成熟了，可以支持产生激素的大部分功能。 the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) 胎盘具有五大功能，即气体交换、供应营养、排泄废物，防及内分泌作用。因而它可以说是胎儿营养的大本营。妊娠的3?6个月是脑细胞迅速增殖的第一阶段，称为“脑迅速增长期”。 进入孕11周，胎儿身长已经达到45?63毫米，体重达到14克，胎儿开始能做吸吮、吞咽和踢腿的动作，现在胎儿细微之处已经开始发育，他(她)的手指甲和绒毛状的头发已经开始出现。胎儿维持生命的器官如肝脏、肾、肠、大脑以及呼吸器官都已经开始工作。本周已能够清晰地看到胎儿脊柱的轮廓，脊神经开始生长。 从现在开始，胎儿的骨骼细胞发育加快，肢体慢慢变长，逐渐出现钙盐的沉积，骨骼变硬。此时胎儿就要从孕妇体内摄取大量的钙质，如果孕妇钙质摄取不足，自己骨骼等处的钙质便会分解，以补充血钙的不足来供给胎儿。 孕早期在孕12周就要结束了，3个月来胎儿发生了巨大的变化。仅仅70多天的时间，胎儿就初具人形了。这时胎儿的大脑体积越来越大，占了整个身体的一半左右。现在发生流产的机会相应地减小了，胎儿成长的关键器官也将在两周内完成。他(她)现在大约65毫米，手指和脚趾已经完全分开，一部分骨骼开始变得坚硬，并出现关节雏形。从牙胚到趾甲，胎儿都在忙碌地运动着，时而踢腿，时而舒展身姿，看上去好像在跳水上芭蕾舞。 怀孕第3个月胎教 现在你的身体变化依然不大，有过怀孕生产史的孕妇腹部会稍有突出，初次怀孕的女性现在还看不出腹部的变化。这个阶段你的情绪变化会很剧烈，刚才还眉开眼笑，转眼间就会闷闷不乐，这时的喜怒无常是正常的情绪波动，但是你仍要调整心绪，让自己有一个愉快的孕期。 情绪对胎儿的影响已经在前几周里谈到，但是现在许多孕妇还是会感到心绪不宁，因为妊娠后生理的变化太大，周围人对自己的关心、猜测等等行为会对孕妇心理造成压力，这时有一个平稳安乐的情绪尤为重要。因为母亲和胎儿之间可以通过血液中的化学成分沟通信息，中医有“孕借母气以生，呼吸相通，喜怒相应，一有偏奇，即致子疾”的理论。现代医学研究也认为母亲的情绪直接影响内分泌的变化，而内分泌物又经过血液流到胎儿体内，你的快乐与悲伤会让胎儿与你一同享受，你愿意让他(她)陪着你焦虑伤心吗,而且当你情绪不安时，体内肾上腺髓质激素的分泌量会增多，通过血液会影响胎儿的正常发育。 马上你就要进入一个良性发展的时期，保持愉快的心情，让腹中的胎儿与你一起快乐成长。 怀孕第3个月需做哪些检查 应该引起警惕的是:注意你的妊娠是否宫外孕，宫外孕的早期表现是感到下腹一侧有隐痛或酸坠感，妇科检查时会发现子宫增大与妊娠的月份不符合，而且the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) 孕早期出现不规则的阴道出血。输卵管破裂时，会有剧烈的下腹疼痛，很快会由于腹腔内大出血导致休克。 第4个月的食谱为了配合胎儿骨骼发育和胎教的需要，孕妇应当多吃鸡蛋、胡萝卜、菠菜、海带、牛奶等营养品。早餐:米饭1碗，豆腐与海带汤1碗，鸡蛋1个;10点:橘子1个(含大量的维生素C);午餐:凉面1盘，番前鸡蛋酱;3点:牛奶1瓶、饼干几片;晚餐:米饭2碗，海带丝拌菠菜，酱菜，胡萝卜豆腐汤1碗。 下面介绍几种营养菜做法。虾仁炒韭菜原料:韭菜250克，鲜虾150克，芝麻油150克，食盐3克。做法:?将韭菜洗净，切成3厘米长的节;鲜虾剥去壳，洗净;葱切成段;姜切成片。?将锅烧热，放入植物油烧沸后，先将葱下锅煸香，再放虾和韭菜，烹黄酒，连续翻炒，至虾熟透，起锅装盘即可。特点:清香味美，补血养血。牡蛎粥原料:鲜牡蛎肉100克，糯米100克，大蒜末50克，猪五花肉50克，料酒10克，葱头末25克，胡椒粉1.5 克，精盐10克，熟猪油2.5克，清水1.5克。做法:?糯米淘洗干净备用，鲜牡蛎肉清洗干净，猪五花肉切成细丝。?糯米下锅，加清水烧开，待米稍煮至开花时，加入猪肉、牡蛎肉、料酒、精盐、熟猪油，一同煮成粥，然后加入大蒜末、葱头末、胡椒粉调匀，即可食用。特点:牡蛎肉味极鲜美，是优良的营养食品，以牡蛎入粥食用，是南方沿海民间风行的小吃饮食。牡蛎气味咸平、微寒，可供药用。牡蛎粥可以对维生素D 缺乏病有疗效。菠菜煎豆腐原料:菠菜500克，豆腐3块，素油、酱油、糖、味精、盐各适量。做法:锅烧热加油，豆腐切片放入油锅两面煎黄，加上配料，烧1,2分钟，再加菠菜即可。特点:色味鲜美，含大量维生素。 第五个月怀胎的营养食谱 2009-08-14 20:57:17 来源: 太平洋亲子网(广州) 跟贴 0 条 手机看新闻 第5个月的食谱怀孕近5个月的孕妇，每天膳食中必须保证钙1(5毫克，维生素A300国际单位，胡萝卜素6毫克，维生素Cl00克。 小烧什锦原料: 猪舌250克，猪肝500克，水发玉兰片150克，化猪油50克，酱油50克，菜油250克(耗75克)，菌子50克，汤1500克，猪心z50克，猪肉150克，鲜菜300克，食盐7.5克，味精1. 5克，水豆粉125克，葱姜30克。 做法:?将猪肚、舌、心出水，然后分别刮洗干净，煮熟，均切成长约5厘米、宽1(5厘米、厚1(2厘米的条。玉兰片及鲜菜(菜头、萝卜或青笋均可)切成条。瘦猪肉剁细，放人碗内，加少许盐、水豆粉拌匀，再在八成热油锅内炸成肉丸子。菌子用水发胀，淘洗干净，切成片，用清水漂起待用。?炒锅置旺火上，放人猪油，烧至五成热时，先下葱、姜依次下食盐、酱油、肉丸子、掺汤烧开，再连汤倒人锅内，用小火慢烧。?猪肚、舌等约烧之小时，加入菌子、玉兰片。再烧约半小时，而后加入蔬菜同烧。直烧至肚烂、菜熟时，随即下水豆粉，勾成二流荧，下味精起锅。 特点:色泽金黄，味浓可口。 the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v) 炒素蟹粉原料: 水发冬菇15克，熟红萝卜12(5克，熟鲜笋12(5克，熟土豆250克，生油150克，白糖、精盐、米醋、姜未、味精、时令绿叶菜少许(冬菇可用黑木耳代)。 做法:?把熟土豆、红萝卜去皮漱成泥，鲜笋斩细，绿叶菜和水发冬菇切成丝。?炒锅放生油熬熟，投入土豆、红萝卜泥煽炒，炒到起酥，再放绿叶菜和冬菇、笋同炒，并随加白糖，精盐、味精、姜未稍炒，最后淋少许米醋，随即起锅装盘。 怀孕期间吃酸也要讲究科学性，孕妇可选择番茄、橘子、杨梅、石榴、葡萄、绿苹果等新鲜果蔬，这样既能改善胃肠道不适症状，也可增进食欲，加强营养，有利于胎儿的生长，一举多得。 但一定要记住不要吃腌制的酸菜或者醋制品，人工腌制的酸菜、醋制品虽然有一定的酸味，但维生素、蛋白质、矿物质、糖分等多种营养几乎丧失殆尽，而且腌菜中的致癌物质亚硝酸盐含量较高，过多地食用显然对母体、胎儿健康无益。 另外，对于酸酸的山楂，虽然其富含维生素C，但是无论是鲜果还是干片，孕妇都不能多吃。因为山楂或山楂片有刺激子宫收缩的成分，有可能引发流产和早产，尤其是妊娠3个月以内的早孕妇女及既往有流产、早产史的孕妇更不可贪食山楂。 the second determination as a result. Results of two small The number. 5, allows the analysis of personnel simultaneously or in quick succession for the second determination, the absolute value of the difference of the results: when the ash is less than 1%, should not exceed 0.02% of the average results when the ash is more than 1%, should not exceed 2% of the average result. Protein from starch-determination of Kjeldahl nitrogen-1, define the content: formed by hydrolysis of starch and its derivatives in the sample of free amino acid content of nitrogen and ammonia-containing compounds. To the sample n samples of the original weight weight weight expressed as a percentage. Principle 2, in the presence of a catalyst, sulfuric acid starch and its derivatives and reaction products of alkali, and distilling ammonia release. Using boric acid solution collects, and then calibrated sulfuric acid solution titrated, get the volume of sulphuric acid consumed the number that can be converted into nitrogen. This method is suitable for ammonia content is greater than 0.01% (m/m) samples of starch and its derivatives; 3, reagent in the determination process, only use analytical grade reagent and distilled water, or at least the purity of water. Concentrated sulphuric acid: 96% (m/m), ρ 20 for 1.84g/mL. Sodium hydroxide solution: 40% (m/m), ρ 20 for 1.43g/mL. Boric acid solution: 20g/L. Catalyst: formed by the 97g and 3G of potassium sulfate anhydrous copper sulfate. Standard solution of sulphuric acid: about 0.02mol/L, or 0.1 mol/l standard solution. Indicator: by two 50% (v/v) alcohol solution of the neutral methyl red, cold saturated solution and a 50% (v/v)