痒不痒有关系—山药的痒痒秘密

痒不痒有关系—山药的痒痒秘密 癢不癢有關係—山藥的癢癢秘密 壹、摘要: 芋頭內使手癢的成分可能是草酸堿,如果直接用清水沖會洗不太掉,用沸水煮一下可使癢物質消除,如果手癢把手烤一下手便可以馬上不癢或塗上生薑,用小蘇打水洗芋頭對手也比較不癢,最後也可以帶手套以減少手和芋頭的接觸,和芋頭的非癢物是什麼, 貳、研究動機: 有一次幫媽媽削芋頭,在清洗芋頭時手一直會發癢,因此上網找資料但都沒有明確的 答案 八年级地理上册填图题岩土工程勘察试题省略号的作用及举例应急救援安全知识车间5s试题及答案 也因此有了動機想做一些實驗來探討為甚麼削芋頭會使手癢,到底是我自己皮膚過敏還是每個人都會癢,也希望能幫助一些家庭主婦,能不用為了削芋頭手會癢的事煩惱。 在實驗時意外發現山藥的汁液也會發癢因此也拿來做實驗。 參、研究目的: 一、芋頭不同部位對手的影響, 二、手不同部位對芋頭的敏感度有無差別, 三、熱對芋頭和山藥發癢物質的影響, 四、芋頭和山藥發癢物質對酸性、鹼性、中性的反應, 五、如何避免手在削芋頭時發癢, 六、如何解決芋頭和山藥對手的癢, 七、如果在削芋頭時不慎碰到如何除理, 八、不同年齡層對芋頭的發癢程度, 九、芋頭的發癢物是什麼, 肆、文獻探討: 大樹出版社:植物Q&A P146頁,「削芋頭手為什麼會癢」中告訴我們芋頭中的癢物質是草酸堿並沒有很明顯的表示為甚麼會發癢。 伍、研究設備器材: 芋頭3顆、山藥一條、鍋子,菜刀,鹽,醋,酒精燈,小蘇打粉,研缽,碼表,解剖顯微鏡,複式顯微鏡、解剖針。 陸、研究過程或方法: 實驗一、把芋頭和山藥切小塊狀:從表皮層、內層、中心層切:三塊塗抹在手臂上。 實驗二、:手背、手臂下半部、手臂上半部、手掌心、臉:。把芋頭和山藥切小塊狀:芋頭表皮層:在五個地方上開始塗抹。 strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the "Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of > (Hunan Office issued 2013 No. 5)," Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. "Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the" who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security "principle, the implementation of safety The production of "cure." stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the "one vote veto" and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling " For the people "," the interests of the masses no matter "concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of" six systems "construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in" across the board ", and the quality 實驗三、把芋頭和山藥切成2?×2cm×1cm的塊狀幾片把熱水煮開後丟入熱水15秒到6分鐘:15秒到6分鐘:之後分別撈出來之後塗抹在手上來感覺。 實驗四、把芋頭和山藥切小塊狀:表皮層:分別沾鹽水:中性:蘇打水:鹼性:醋:酸性:。 實驗五、把芋頭和山藥切小塊狀:表皮層:塗抹在手上發癢後在酒精燈上烤、用生薑擦拭、用醋洗手、將手浸入加水稀釋的阿摩尼亞水證明是否可以解決發癢。 實驗六、找3-5個不同年齡層的人做實驗:小孩、青少年、成年人和老人: 實驗七、把芋頭和山藥磨成泥一層一層過濾後塗抹在手上檢驗發癢物的分子大小。 柒、研究結果: 一、發癢指數: 0 不癢 1 不太會癢 2一點癢 3 普通癢 4 癢 5 極癢 大小2×2×1立方公分 表皮 內層 中心 臉 5 3 1 手掌 1 0 0 手臂(下節) 4 3 0 手臂(上節) 4 3 0 手背 3 2 0 二、酒精燈加熱芋頭溶液之實驗結果 (一)從100度的水開始加熱: 分 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 山藥 × × × × × × × × × × × × 芋頭 (二) 進 階 秒 5 10 15 20 25 30 山藥 ? ? × × × × 芋頭 推論:用水煮沸芋頭和山藥溶液15秒後,造成皮膚發癢物質便已被破壞。 :Ps:實驗之芋頭大小均為2cm×2cm×1cm: strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the "Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of > (Hunan Office issued 2013 No. 5)," Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. "Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the" who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security "principle, the implementation of safety The production of "cure." stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the "one vote veto" and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling " For the people "," the interests of the masses no matter "concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of" six systems "construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in" across the board ", and the quality 三、 溶劑比例:水含量: 芋芋浸泡時間 芋頭芋頭溶液種類 山芋頭山頭山頭山:分鐘: 100 0%山藥 藥 75% 藥 50藥 25藥 % :水: % % 1 ? ? ? ? ? ? ? ? ? ? 3 × ? ? ? ? ? ? ? ? ? 鹽 水5 × ? × ? × ? ? ? ? ? 溶 液 7 × ? × ? × ? × ? ? ? 9 × ? × ? × ? × ? ? ? 1 × × × × 3 × × × × 醋 水5 × × × × 溶 液 7 × × × × 9 × × × × 1 × × × × 小3 × × × × 蘇 打5 × × × × 水 溶7 × × × × 液 9 × × × × 說明:? 表會使皮膚發癢 ? 表皮膚發癢程度降低 × 表不會造成皮膚發癢 推論:1. 高溶度鹽水溶液會降低芋頭所引起之皮膚發癢程度 2. 醋及小蘇打水可抑制芋頭造成之皮膚發癢 3. 拿泡過芋頭的水塗抹皮膚後仍會有點癢,因此 分析 定性数据统计分析pdf销售业绩分析模板建筑结构震害分析销售进度分析表京东商城竞争战略分析 芋頭在泡水的時候 發癢物質會流入水中,也分析水會沖淡發癢物質,因此洗芋頭的水對皮 膚也會發癢。 strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the "Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of > (Hunan Office issued 2013 No. 5)," Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. "Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the" who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security "principle, the implementation of safety The production of "cure." stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the "one vote veto" and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling " For the people "," the interests of the masses no matter "concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of" six systems "construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in" across the board ", and the quality 4.山藥泡鹽水無效 (Ps鹽水和蘇打水適用50克的鹽和蘇打粉調成100ml的鹽水和蘇打水為100,) 四. 發癢後的除理 方法 火 生薑 冰醋酸稀釋到PH4.0 時間 30秒 立即有效 尚無效果 尚無效果 1分 尚無效果 慢慢不癢 2分 尚無效果 不癢 3分 效果不佳 不癢 五. 實驗 老人 成年人 少年 幼兒 對象 結果 不癢 還好 會癢 會癢 Ps. 因此推論年紀愈大者,皮質層較厚,較不會感覺到癢。 六. 把芋頭和山藥搗成泥後加水後用兩層濾紙過濾分別把芋頭和山藥過濾後的水和 過濾後的物質塗抹在手臂上 芋頭 山藥 芋頭 山藥 過濾後的物質 過濾後的物質 過濾後的水 過濾後的水 會不會癢 不會 會 會 不會 Ps. 因此推論芋頭的發癢物質分子較小可通過濾紙,山藥發癢物不同物質較大因 此殘留在濾紙上 捌、討論: Q:加熱後為甚麼就不會癢, A:因為熱能讓芋頭內使手發癢物質的蛋白質,產生化學變化,就像蛋煮熟會凝固一樣.雖然基礎的氨基酸仍然一樣,但是排列出來的蛋白質形狀組合已經不同。 所以才不會癢。 Q:芋頭沾鹽水之後為甚麼就不太會癢, A:高溶度鹽水溶液會降低芋頭所引起之皮膚發癢程度。 Q:芋頭沾蘇打水之後為甚麼就不太會癢, strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the "Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of > (Hunan Office issued 2013 No. 5)," Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. "Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the" who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security "principle, the implementation of safety The production of "cure." stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the "one vote veto" and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling " For the people "," the interests of the masses no matter "concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of" six systems "construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in" across the board ", and the quality A:可能是蘇打水中的物質可以和芋頭的發癢物互相抵制 Q:芋頭沾醋之後為甚麼就不太會癢, A:頭的皮上面含有草酸堿是鹼性,但是醋是酸性,所以可以中和草酸堿 Q:芋頭沖水能不能沖淡使人發癢的物質, A:應該可以因為在實驗中發現芋頭的發癢物可以融于水,因此在洗芋頭時也要小心泡芋頭的水。 Q:芋頭表皮上有發癢物質,但中心並沒有發癢物質,為甚麼, Q:芋頭中真的含有草酸堿導致皮膚發癢嗎, A:應該是書上寫的 Q:芋頭對手的反應:手掌心、手背、手臂上節、手臂下節、臉哪比較會癢,為甚麼, A:因為芋頭的發癢物是從毛細孔進入的因此臉部最癢其次是手臂上節、手臂下節、手背,但人最特別的是人的手掌心沒有毛細孔而且手掌還有透明層,可以阻擋大部分的水和液體。 Q:膚質不同,對芋頭發癢物的反應是否有差別, A:有差別不同的膚質有的人不論如何都不會癢,在實驗中有一位受實者不論臉或手臂都不會癢,有的人只抹一點就非常癢。 Q:不同年齡層,對芋頭發癢物的反應是否有差別, A:可能年紀愈大者,皮質層較厚,較不會感覺到癢。 玖、結論: 一、因為芋頭含有一種粘粘的物質,稱之粘質(Mucin),粘液中含有草酸堿的成分,如果不慎沾到皮膚,會刺激發癢。遇此情況。可在火上烘烤,即可止癢.另外只要再處理芋頭時不要碰到手掌以外有毛細孔的地方就好了。 二、因為芋頭的皮上面含有草酸堿,草酸堿會使手很癢,所以用醋洗手,中和草酸堿。 三、大量的水可以降低芋頭的發癢程度。 四、高溶度鹽水溶液會降低芋頭所引起之皮膚發癢程度。 五、用蘇打粉也可以止癢。 六、用火烤是止癢最快的方法。 拾、參考資料: 一、透明層:除了手掌、足部之外,其他各部位的皮膚並沒有這一層。 二、這層是個防水層,也是透明層最特殊之處。外界的純水無法透過此層,因而阻擋水份被皮膚吸收。表皮的透明層是構成皮膚屏障的第一層障壁,對於電解質的穿透有制阻的作用。 三、芋頭:芋頭表皮層因含有草酸堿黏液,當你削皮做菜時,皮膚很容易產生劇癢的現象,此時只要用熱水沖洗,或是靠近爐火旁取暖,便可消除或減緩。 strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the "Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of > (Hunan Office issued 2013 No. 5)," Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. "Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the" who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security "principle, the implementation of safety The production of "cure." stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the "one vote veto" and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling " For the people "," the interests of the masses no matter "concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of" six systems "construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in" across the board ", and the quality 四、老一輩的人常說;「只要芋頭煮熟,手也就不癢了。」 備註:此實驗癢的定義是受實驗的三個人都一樣有癢的反應。 strengthen the sense of responsibility, work to solve the lack of decent occupation explain away, conduct problems. To establish the overall concept, eliminate departmentalism. Strict assessment and accountability, to solve the spiritual slack, nianqingpazhong, status quo, and other issues. To establish and perfect the muddle along Bureau staff conduct work regulations, standardize the behavior of personnel. 2. To strengthen the responsibility system. One is the in-depth study and implement the "Hunan provincial Party and government leading cadres Interim Provisions on the work safety of a pair of > (Hunan Office issued 2013 No. 5)," Hunan province safety supervision and management responsibilities of the provisions on the production (Hunan Zhengban made 2013 No. 4) And resolutely implement the safety production of the party with responsibility, a pair of responsibility. "Two is issued safety production administration and inspection to promote the responsibilities bear safety production supervision departments strictly and effectively assumed responsibility. The three is to establish risk self correction self reporting system for safety in production enterprises, promote the enterprises to implement the main responsibility for production safety is introduced. Four strengthen the county safety production supervision ability construction work, promote safe production responsibility to the grassroots. 3, strict accountability and target management. Adhere to the" who is in charge, who is responsible for the pipe industry must be safe, Guan Sheng production and operation must be safe, pipe business must control security "principle, the implementation of safety The production of "cure." stagnation supervision and leadership responsible system. The safety production of key towns, key enterprises and key problems, by the township government and the Department responsible for the stagnation led the lump sum, to tackle tough. To further increase the production safety index assessment, strictly implement the safety production of the "one vote veto" and the reward system, strengthen the safety incentive and restraint mechanism. (six) the implementation of the work force is not strong. The documents, meeting, long work arrangement, check and supervise the implementation of small, poor implementation of the system, the work is not effective. Some leading cadres sense of purpose, consciousness of the masses is not strong, the ruling " For the people "," the interests of the masses no matter "concept understanding is not in place. The specific work treats with the deployment, a few leading cadres complain that work is too complicated, too much responsibility, the pressure is too large, too much emphasis on the difficulty of the work, such as underground mines to avoid the disaster of" six systems "construction and construction of mechanical ventilation to file the form, forwarding arrangements work, no in-depth mining enterprises to promote the specific work, the increase in the number of files, but the effect is not good, not according to the actual situation of non coal mines in the county, to engage in" across the board ", and the quality