Bioactive Compounds Biosynthesis and Metabolism in Fruit and Vegetables PDF Download

Author: Antonio Ferrante
Publisher: Frontiers Media SA
ISBN: 2889636038
Category :
Languages : en
Pages : 163

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Author: Spyridon A. Petropoulos
Publisher: Bentham Science Publishers
ISBN: 1681087391
Category : Science
Languages : en
Pages : 492

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Book Description
Phytochemical compounds are secondary metabolites that plants usually synthesize for their own protection from pests and diseases. Phytochemical biosynthesis is also triggered under specific environmental conditions. They cannot be classified as essential nutrients since they are not required at specific amounts for life sustenance. Phytochemicals in Vegetables: A Valuable Source of Bioactive Compounds presents information about the phytochemical (common and scarce) content of several cultivated vegetables, as well as their health and therapeutic effects based on in vitro, in vivo, animal and clinical studies. Chapters also cover recent research findings about their mode of action, bioavailabity, interactions with other biological matrices and pharmacokinetics. Moreover, the book gives special attention to the factors that may alter and modulate bioactive compound content, including both cultivation practices and post-harvest treatments that aim towards the production of high quality and healthy foods. Researchers, public health workers, consumers and members of the food industry will find this book to be a useful reference on the variety of phytochemicals present in vegetables.

Author: Elhadi M. Yahia
Publisher: John Wiley & Sons
ISBN: 111915796X
Category : Technology & Engineering
Languages : en
Pages : 1445

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Book Description
Now in two volumes and containing more than seventy chapters, the second edition of Fruit and Vegetable Phytochemicals: Chemistry, Nutritional Value and Stability has been greatly revised and expanded. Written by hundreds of experts from across the world, the chapters cover diverse aspects of chemistry and biological functions, the influence of postharvest technologies, analysis methods and important phytochemicals in more than thirty fruits and vegetables. Providing readers with a comprehensive and cutting-edge description of the metabolism and molecular mechanisms associated with the beneficial effects of phytochemicals for human health, this is the perfect resource not only for students and teachers but also researchers, physicians and the public in general.

Author: Luis Rodrigues da Silva
Publisher: Bentham Science Publishers
ISBN: 168108239X
Category : Science
Languages : en
Pages : 299

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Book Description
Plants have been widely used to treat diseases, owing to the presence of bioactive compounds (phytochemicals) which play important roles in health promotion and disease prevention. In recent years, advances in chemical extraction techniques, lifestyle and dietary choices for human health have increased the interest in the consumption and study of fruits, vegetables, and foods enriched with bioactive compounds and nutraceuticals. Thousands of dietary phytochemicals, such as flavonoids, phenolic acids, glucosinolates, terpenes and alkaloids, have been identified and categorized further according to a diverse array of biochemical properties. Many of these phytochemicals have been hypothesized to reduce the risk of several pathological conditions which include life threatening diseases such as heart disease and cancer, to name a few. Natural Bioactive Compounds from Fruits and Vegetables as Health Promoters is a 2 book set which presents a summary of different classes of phytochemicals commonly found in common edible food sources. Each chapter details the general chemical structures of compounds, naturally present in specific fruits, vegetables and grains, their biological importance and mechanisms of action. The book set is an essential handbook for anyone interested in the natural product chemistry of these common crops. Part 1 of this set covers details about different fruits (banana, citrus fruits, pears, etc.). Part 2 covers legumes, nuts, seeds and cereals.

Author: Vijai Kumar Gupta
Publisher: John Wiley & Sons
ISBN: 1118733495
Category : Technology & Engineering
Languages : en
Pages : 742

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Book Description
Bioactive compounds play a central role in high-value product development in the chemical industry. Bioactive compounds have been identified from diverse sources and their therapeutic benefits, nutritional value and protective effects in human and animal healthcare have underpinned their application as pharmaceuticals and functional food ingredients. The orderly study of biologically active products and the exploration of potential biological activities of these secondary metabolites, including their clinical applications, standardization, quality control, mode of action and potential biomolecular interactions, has emerged as one of the most exciting developments in modern natural medicine. Biotechnology of Bioactive Compounds describes the current stage of knowledge on the production of bioactive compounds from microbial, algal and vegetable sources. In addition, the molecular approach for screening bioactive compounds is also discussed, as well as examples of applications of these compounds on human health. The first half of the book comprises information on diverse sources of bioactive compounds, ranging from microorganisms and algae to plants and dietary foods. The second half of the book reviews synthetic approaches, as well as selected bioactivities and biotechnological and biomedical potential. The bioactive compounds profiled include compounds such as C-phycocyanins, glycosides, phytosterols and natural steroids. An overview of the usage of bioactive compounds as antioxidants and anti-inflammatory agents, anti-allergic compounds and in stem cell research is also presented, along with an overview of the medicinal applications of plant-derived compounds. Biotechnology of Bioactive Compounds will be an informative text for undergraduate and graduate students of bio-medicinal chemistry who are keen to explore the potential of bioactive natural products. It also provides useful information for scientists working in various research fields where natural products have a primary role.

Author: José Justino
Publisher: BoD – Books on Demand
ISBN: 953513423X
Category : Science
Languages : en
Pages : 486

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Book Description
Flavonoids are abundant secondary metabolites found in plants and fungi that have various roles in these organisms, including pigmentation, cell signalling, plant defence and inter-organism communication. Due to their abundance in nature, flavonoids are also important components of the human diet, and the last four decades have seen an intense study focused on the structure characterization of flavonoids and on their roles in mammal metabolism. This book reviews most of the well-established activities of flavonoids, and we also present more recent research studies on the area of flavonoids, including the chemical aspects of structure characterization of flavonoids, the biosynthesis of flavonoids in model plants as well as their role in abiotic stress situations and in agriculture, the role of flavonoids in metabolism and health and their importance in foods, from consumption to their use as bioactive components.

Author: Laura A. de la Rosa
Publisher: John Wiley & Sons
ISBN: 0813809487
Category : Technology & Engineering
Languages : en
Pages : 381

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Book Description
Fruit and Vegetable Phytochemicals: Chemistry, Nutritional Value and Stability provides scientists in the areas of food technology and nutrition with accessible and up-to-date information about the chemical nature, classification and analysis of the main phytochemicals present in fruits and vegetables – polyphenols and carotenoids. Special care is taken to analyze the health benefits of these compounds, their interaction with fiber, antioxidant and other biological activities, as well as the degradation processes that occur after harvest and minimal processing.

Author: Elhadi M. Yahia
Publisher: Woodhead Publishing
ISBN: 0128132795
Category : Technology & Engineering
Languages : en
Pages : 510

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Book Description
Postharvest Physiology and Biochemistry of Fruits and Vegetables presents an updated, interrelated and sequenced view of the contribution of fruits and vegetables on human health, their aspects of plant metabolism, physical and chemical/compositional changes during the entire fruit development lifecycle, the physiological disorders and biochemical effects of modified/controlled atmospheres, and the biotechnology of horticultural crops. The book is written specifically for those interested in preharvest and postharvest crop science and the impact of physiological and biochemical changes on their roles as functional foods. Deals with the developmental aspects of the lifecycle in whole fruits Describes issues, such as the morphology and anatomy of fruits, beginning with the structural organization of the whole plant and explaining the fruit structure and its botanical classification Addresses biotechnological concepts that control firmness, quality and the nutritional value of fruits

Author: Spiros Paramithiotis
Publisher: CRC Press
ISBN: 131535330X
Category : Science
Languages : en
Pages : 217

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Book Description
Lactic acid fermentation has been practiced for thousands of years mainly to preserve surplus and perishable foodstuff and also to enhance them organoleptically. Lactic acid fermentation of fruits and vegetables is no exception, leading to the production of a wide range of products, some of which are now considered as characteristic of certain geographical areas and cultures. The aim of this book is to collect, present, and discuss all available information regarding lactic acid fermentation of fruits and vegetables. For this purpose, an international group of experts was invited to contribute their knowledge and experience in a highly informative and comprehensive way. The book consists of fourteen chapters. The first five chapters integrate aspects that apply to all products. Then, chapters 6 to 9 are dedicated to products that have met commercial significance and have been extensively studied, i.e. sauerkraut, kimchi, fermented cucumbers and olives. In chapters 10 to 13, regional products with great potential from Asia, Europe and Africa, as well as lactic acid fermented juices and smoothies, are presented and thoroughly discussed. Finally, chapter 14 discusses the fields in which intensive study is expected to take place in the coming years.

Author: Claire Joanne Macdonald-Clarke
Publisher:
ISBN:
Category :
Languages : en
Pages :

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A diet rich in fruit and vegetables is associated with better bone health although the reason behind this remains unclear. Mounting evidence suggests that it may be particular fruit and vegetables or a variety of fruit and vegetables that are important and it has been suggested that bioactive compounds, considered to be non-essential nutrients, may play a role. The aims of this project were to study the roles of three classes of dietary compounds on bone health: flavonoids (represented by hesperetin), anthocyanidins and carotenoids. Methods The influence of six major anthocyanidins, six major carotenoids and the citrus flavanone hesperetin were examined by three methodological approaches: (i) a cross-sectional study using outcomes of bone mineral density (BMD) and markers of bone turnover, (ii) a randomised controlled trial with bone turnover markers as the outcome measures and (iii) in vitro examinations in osteoblasts and osteoclasts. The epidemiological part of this thesis was carried out in the Aberdeen Prospective Osteoporosis Screening Study (APOSS) cohort. Women were recuited to the study between 1990 and 1994 and returned for a follow-up visit between 1997 and 1999 (n=3214, mean age 54.8 y at follow-up). Measurements of BMD at the spine and hip were taken at both visits; and urinary markers of bone resorption total deoxypyridinolines (DPD) and total pyridinolines (PYD), and a serum bone formation marker N-terminal propeptides of type 1 procollagen (P1NP), were analysed at the follow-up visit. Diet was recorded by food frequency questionnaire and dietary anthocyanidins and carotenoids were estimated using a database of food compositions developed for this purpose. Analysis was carried out to determine if anthocyanidin or carotenoid intakes were associated with BMD, change in BMD (between the 2 visits), or markers of bone resorption or formation, within the APOSS population. The effect of the carotenoid lycopene on bone turnover was assessed in a 3-month randomised controlled trial in 214 apparently healthy men and women. Participants were randomised into 3 groups: high dietary lycopene (minimum 10 mg/d); low tomato diet with lycopene capsule vi (10 mg/d) or a low tomato diet as the control. Marker of bone resorption plasma carboxyterminal collagen crosslinks (CTX) and marker of bone formation serum P1NP were analysed at baseline (after washout) and after 12 weeks of intervention. In order to study if the aglycone or glycoside compounds directly affect bone metabolism, the effects of a series of anthocyanidins on osteoblast differentiation were analysed in vitro. The effects of hesperetin on osteoblast differentiation and mineralisation and on osteoclast formation and function in vitro were also assessed. Results Regarding the epidemiological part of the project, associations between both dietary anthocyanidins and carotenoids and markers of bone health were observed in the APOSS population. Higher total dietary anthocyanidin intake was found to be associated with higher spine BMD and lower concentrations of bone resorption markers. In addition higher total dietary anthocyanidin intake was associated with less BMD loss at the spine in the period between baseline and follow-up, which was illustrated by a 13.2% difference in annual percent bone loss between the highest and lowest quartiles of anthocyanidin consumption. Individual anthocyanidins were also found to be associated with different markers of bone turnover. Total dietary carotenoid intake was found to be associated with BMD at the spine and lower concentrations of bone resorption markers. Analysis of the individual carotenoids showed that lycopene was associated with higher BMD at the hip; [beta]-carotene was associated with less BMD loss at the spine; and [beta]-carotene, lycopene, [beta]-cryptoxanthin and lutein/zeaxanthin were found to be associated with lower concentrations of bone resorption markers. Each of these findings remained significant after adjusting for confounding factors. In the 3-month randomised controlled trial, lycopene supplementation did not alter bone turnover markers CTX or P1NP. These results are in contrast to those of a previous, smaller randomised controlled trial in postmenopausal women where a decrease in a marker of bone resorption (N-telopeptide of collagen cross-links (NTX)) was observed. Therefore these results suggest that the potential beneficial effect of lycopene may be specific to a population at risk of bone loss. Alternatively, lycopene may have a cumulative protective effect over the lifetime but short-term effects may only be observed in groups with high bone turnover, where there is greater potential to see measureable effects. The results of the in vitro investigations of this project showed that neither anthocyanidins nor hesperetin had an affect on osteoblasts or osteoclasts at physiologically relevant concentrations. Almost all of the anthocyanidin compounds tested had no effect on osteoblast differentiation, and none at physiological concentrations. Similarly, hesperetin had no effect on osteoblast differentiation or mineralisation although it did have an effect on both osteoclast formation and function, but only at concentrations which were not considered to be physiologically relevant. These results add weight to the suggestion that the metabolites of dietary compounds may be responsible for the action on bone metabolism rather than the dietary compounds directly or that a combination of compounds, as found in foods, may be required. Conclusions Taken together, these results support the evidence that a diet rich in fruit and vegetablederived bioactive compounds is beneficial to bone health. Future work could include: observational studies to examine the association of lifetime consumption and long-term risk of fracture; larger dietary intervention trials; and in vitro studies to examine the effects of the compound metabolites and elucidate their mechanism of action.