WordNet
- pH values below 7
- the taste experience when something acidic is taken into the mouth (同)acidulousness
PrepTutorEJDIC
- 酸味;酸度
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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/12/03 21:04:14」(JST)
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In chemistry, Titratable acid generally refers to any acid that can lose proton(s) in an acid-base reaction.
The term is sometimes used slightly differently in other fields. For example, in renal physiology, Titratable acid is a term to describe acids such as phosphoric acid, sulfuric acid which are involved in renal physiology. It is used to explicitly exclude ammonium (NH4+) as a source of acid, and is part of the calculation for net acid excretion.
It gets its name from the use of NaOH in acid-base titration to estimate the quantity of titratable acid.[1]
See also[edit]
References[edit]
- ^ Physiology at MCG 7/7ch12/7ch12p27 - "Regeneration of Bicarbonate, the Role of Titratable Acid: Definition of Titratable Acid"
External links[edit]
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English Journal
- Effect of deastringency treatment of intact persimmon fruits on the quality of fresh-cut persimmons.
- Chung HS1, Kim HS2, Lee YG2, Seong JH2.
- Food chemistry.Food Chem.2015 Jan 1;166:192-7. doi: 10.1016/j.foodchem.2014.06.015. Epub 2014 Jun 12.
- The changes in the quality characteristics of the fresh-cut products prepared from intact 'Cheongdobansi' persimmons treated with different deastringency methods (nontreated, carbon dioxide gas, warm water, ethanol vapour) have been investigated for 6days at 10°C. Flesh firmness of the persimmons d
- PMID 25053045
- Evolution of watermelon fruit physicochemical and phytochemical composition during ripening as affected by grafting.
- Soteriou GA1, Kyriacou MC2, Siomos AS3, Gerasopoulos D3.
- Food chemistry.Food Chem.2014 Dec 15;165:282-9. doi: 10.1016/j.foodchem.2014.04.120. Epub 2014 May 27.
- Flesh reflectance colorimetry, mechanical texture analysis, pH, titratable acidity (TA), and soluble solid (SS), soluble carbohydrate, lycopene and citrulline content of watermelon fruit were assessed throughout ripening (30-50days post-anthesis; dpa) in grafted and self-rooted plants. Grafting incr
- PMID 25038677
- Chemical guide parameters for Spanish lemon (Citrus limon (L.) Burm.) juices.
- Lorente J1, Vegara S1, Martí N1, Ibarz A2, Coll L3, Hernández J3, Valero M4, Saura D1.
- Food chemistry.Food Chem.2014 Nov 1;162:186-91. doi: 10.1016/j.foodchem.2014.04.042. Epub 2014 Apr 21.
- To contribute for setting reference guideline for commercial juice extracted from the Spanish lemon varieties, chemical composition of 92 direct and 92 reconstituted samples were investigated. In direct lemon juice, titratable acidity was 52.4 g/L, being the citric acid the main component. Glucose,
- PMID 24874375
Japanese Journal
- Using Nanomist Humidifier to Maintain Postharvest Quality of Fig (Ficus carica L.) Fruit in High Humidity Storage Environment
- Hung duong van,Tanaka Fumihiko,Uchino Toshikata,Hiruma Naoya,田中 史彦,内野 敏剛,比留間 直也
- Journal of the Faculty of Agriculture, Kyushu University 56(2), 361-365, 2011-09-00
- … Moreover, other attributes of the postharvest quality such as color, total soluble solids and titratable acidity were better maintained by the nanomist during postharvest storage period. …
- NAID 120003596751
- 簡易型近赤外分光計による果実及び野菜中の糖度及び酸度の測定
- 豊田 正武,生信 梓,藤井 亜由美[他]
- 実践女子大学生活科学部紀要 48, 115-120, 2011-03-10
- … The performance of the compact NIR instrument(Fruit Selector) in determining the total sugar and total acid contents of several fruits and vegetables was tested with comparing of Brix sugar meter and liquid sugar meter for total sugar contents, and titratable acidity and liquid acidimeter for total acid contents. …
- NAID 110008427770
- 市販保湿剤における口腔内の脱灰と石灰化に対する効果の可能性(1)pHと滴定酸性度の測定
Related Links
- Due to variation in buffer capacity, there is no direct relationship between titratable acidity and pH. In general, however, higher acid levels in fruit are often associated with lower pH values and vice versa. Thus the acids of the fruit ...
- 1. There are two fundamentally different methods of expressing acidity: (a) titratable acidity expressed as percent lactic acid, and (b) hydrogen ion concentration or pH. The former measures the ...
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