Alkaloids - Their Importance in Nature and Human Life最新文献

Introductory Chapter: Alkaloids - Their Importance in Nature and for Human Life 导论章:生物碱-它们在自然界和人类生活中的重要性

Alkaloids - Their Importance in Nature and Human Life Pub Date : 2019-11-13 DOI: 10.5772/intechopen.85400

Joanna Kurek

{"title":"Introductory Chapter: Alkaloids - Their Importance in Nature and for Human Life","authors":"Joanna Kurek","doi":"10.5772/intechopen.85400","DOIUrl":"https://doi.org/10.5772/intechopen.85400","url":null,"abstract":"In nature there are many natural compounds. From among many classes of naturally occurring organic compounds such as carbohydrates, lipids, proteins, amino acids, anthocyanins, flavonoids, and steroids, the one that seems to be quite special is alkaloids. What makes them special? They derived from amino acids and can be synthetized as secondary metabolites by plants and some animals. These compounds play an important role in living organisms. Alkaloids occurred to be extremely important for human beings for ages, besides they are secondary metabolites, what could suggest that they are useless. Alkaloids showed strong biological effects on animal and human organisms in very small doses. Alkaloids are present not only in human daily life in food and drinks but also as stimulant drugs. They showed anti-inflammatory, anticancer, analgesics, local anesthetic and pain relief, neuropharmacologic, antimicrobial, antifungal, and many other activities. Alkaloids are useful as diet ingredients, supplements, and pharmaceuticals, in medicine and in other applications in human life. Alkaloids are also important compounds in organic synthesis for searching new semisynthetic and synthetic compounds with possibly better biological activity than parent compounds.","PeriodicalId":127548,"journal":{"name":"Alkaloids - Their Importance in Nature and Human Life","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126970869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 50

Synthesis of Tropane Derivatives Tropane衍生物的合成

Alkaloids - Their Importance in Nature and Human Life Pub Date : 2019-11-08 DOI: 10.5772/intechopen.83382

Abdulmajeed S H Alsamarrai

引用次数: 0

Food Glycoalkaloids: Distribution, Structure, Cytotoxicity, Extraction, and Biological Activity 食品糖生物碱:分布、结构、细胞毒性、提取和生物活性

Alkaloids - Their Importance in Nature and Human Life Pub Date : 2019-08-09 DOI: 10.5772/INTECHOPEN.82780

A. Siddique, N. Brunton

{"title":"Food Glycoalkaloids: Distribution, Structure, Cytotoxicity, Extraction, and Biological Activity","authors":"A. Siddique, N. Brunton","doi":"10.5772/INTECHOPEN.82780","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.82780","url":null,"abstract":"Glycoalkaloids (GA), generally occur as plant steroidal glycosides, are secondary metabolites produced in the leaves, flowers, roots, and edible parts including sprouts and skin of the plants of Solanaceae family. Many of the plants in this family have been stable parts of human diets for centuries, and thus, the occurrence of these compounds has been extensively studied mainly due to concerns regarding their toxicity. GAs are produced by plants as a resistance to challenges such as insects and pests but may also produce concentration-dependent toxic effects in humans. Postharvest conditions such as light, temperature, humidity, and processing conditions may also affect GA content in edible plants producing them. Since these compounds also possess biological properties such as anti-inflammatory, antimicrobial, and anticarcinogenic activities, it could be a useful strategy to use novel extraction techniques to maintaining bioactivities after extraction and simultaneously to reduce toxicity in the source plants. This chapter aims to describe alkaloids especially GAs commonly occurring in foods, their structure and toxicity, and postharvesting practices which influence alkaloid content and utilization of conventional and novel technologies to extract food alkaloids.","PeriodicalId":127548,"journal":{"name":"Alkaloids - Their Importance in Nature and Human Life","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129082960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Alkaloids of Pharmacological Importance in Catharanthus roseus 长春花生物碱的药理意义

Alkaloids - Their Importance in Nature and Human Life Pub Date : 2019-01-09 DOI: 10.5772/INTECHOPEN.82006

Hebert Jair Barrales-Cureño, C. Reyes, I. García, L. G. L. Valdez, A. D. Jesús, J. C. V. Ruiz, L. M. Herrera, M. C. C. Caballero, Jesús Antonio Salazar Magallón, J. E. Pérez, Jorge Montiel Montoya

引用次数: 21

Anti-Corrosive Properties of Alkaloids on Metals 生物碱对金属的防腐性能

Alkaloids - Their Importance in Nature and Human Life Pub Date : 2018-11-12 DOI: 10.5772/INTECHOPEN.81749

Hui-jing Li, Weiwei Zhang, Yan‐Chao Wu

引用次数: 6