Plant-derived glucomannans: Sources, preparation methods, structural features, and biological properties

Shi, Xiaodan; Yin, Jingdong; Cui, Steve W.; Wang, Qi; Wang, Shaoyun; Nie, Shaoping

doi:10.1016/j.tifs.2020.02.016

Cited by 43 publications

(16 citation statements)

References 85 publications

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“…Considering that the pH increases during the cell growth and development, the formation of the acetylated O6 units in polysaccharides should subsequently increase, which could be a way to increase the cell signaling for plant growth and development. The acetyl groups are crucial for many of the biological activities possessed by mannans in medicinal use,[ 40 , 41 , 42 , 43 ] and, therefore, it should become important to investigate the possible connection between the acetyl group migration and biological activity. The migration could potentially form the active compound from the prodrug, but could also deactivate the biologically active form.…”

Section: Resultsmentioning

confidence: 99%

“… [29] Aside from the role in the host plants, mannans also exhibit other types of biological activity, such as inhibiting the growth of cancer tumors,[ 21 , 30 , 31 ] displaying antioxidant activities,[ 32 , 33 ] anti‐inflammatory activity,[ 33 , 34 ] immunomodulatory activities,[ 35 , 36 , 37 ] wound healing effects[ 38 , 39 ] and more. [40] For many mannans the acetyl groups are crucial for their biological activity. [ 40 , 41 , 42 , 43 ] Elucidating how these activities are regulated or influenced through acetyl group migration processes could contribute, besides to better utilization of the biological activity of the polysaccharides in therapeutical use, also to understanding the potential internal regulation mechanisms within the plant.…”

Section: Introductionmentioning

confidence: 99%

“… [40] For many mannans the acetyl groups are crucial for their biological activity. [ 40 , 41 , 42 , 43 ] Elucidating how these activities are regulated or influenced through acetyl group migration processes could contribute, besides to better utilization of the biological activity of the polysaccharides in therapeutical use, also to understanding the potential internal regulation mechanisms within the plant.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic Studies of Acetyl Group Migration between the Saccharide Units in an Oligomannoside Trisaccharide Model Compound and a Native Galactoglucomannan Polysaccharide

et al. 2021

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Acyl group migration is a fundamental phenomenon in carbohydrate chemistry, recently shown to take place also between two non-adjacent hydroxyl groups, across the glycosidic bond, in a β-(1!4)-linked mannan trisaccharide model compound. With the central mannoside unit containing acetyl groups at the O2 and O3 positions, the O2-acetyl was in the earlier study shown to migrate to O6 of the reducing end. Potential implications of the general acyl migration process on cell signaling events and plant growth in nature are intriguing open questions. In the present work, migration kinetics in this original trisaccharide model system were studied in more detail together with potential interactions of the model compound and the migration products with DC-SIGN lectin. Furthermore, we demonstrate here for the first time that similar migration may also take place in native polysaccharides, here represented by galactoglucomannan from Norway spruce.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Kinetic Studies of Acetyl Group Migration between the Saccharide Units in an Oligomannoside Trisaccharide Model Compound and a Native Galactoglucomannan Polysaccharide

et al. 2021

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“…In seeds of fenugreek and guar, the endosperm is nonliving and the cells are almost totally filled with galactomannans [ 21 ], and in the seeds of Ceratonia siliqua , galactomannans are observed as thickenings in the walls of living endosperm [ 22 ]. Among mannans, glucomannans are of particular importance, and many reviews have covered the properties, applications and health benefits of various glucomannans from different sources [ 23 , 24 , 25 , 26 ]. Xyloglucans are found in the primary cell walls and the cotyledons of some dicotyledonous seeds, where they function as storage polysaccharides.…”

Section: Storage Reserves Of Seedsmentioning

confidence: 99%

Crosstalk during the Carbon–Nitrogen Cycle That Interlinks the Biosynthesis, Mobilization and Accumulation of Seed Storage Reserves

Kaur

Tak

Bhatia

et al. 2021

IJMS

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Carbohydrates are the major storage reserves in seeds, and they are produced and accumulated in specific tissues during the growth and development of a plant. The storage products are hydrolyzed into a mobile form, and they are then translocated to the developing tissue following seed germination, thereby ensuring new plant formation and seedling vigor. The utilization of seed reserves is an important characteristic of seed quality. This review focuses on the seed storage reserve composition, source–sink relations and partitioning of the major transported carbohydrate form, i.e., sucrose, into different reserves through sucrolytic processes, biosynthetic pathways, interchanging levels during mobilization and crosstalk based on vital biochemical pathways that interlink the carbon and nitrogen cycles. Seed storage reserves are important due to their nutritional value; therefore, novel approaches to augmenting the targeted storage reserve are also discussed.

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“…The high glucomannan content in porang tubers makes this plant in great demand, especially by the food and health industry either in domestic or international trade (Wigoeno et al 2013). According to Shi et al (2020) glucomannan is a hydrophilic polysaccharide that can be produced from various natural plants. One of the most famous is the glucomannan konjac.…”

Section: Introductionmentioning

confidence: 99%

Community knowledge of Amorphophallus muelleri Blume: Cultivation and utilization in Central Java, Indonesia

2021

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Abstract. Wahidah BF, Afiati N, Jumari. 2021. Community knowledge of Amorphophallus muelleri Blume: Cultivation and utilization in Central Java, Indonesia. Biodiversitas 22: 2731-2737. Porang (Amorphophallus muelleri Blume) is a member of the Araceae edible family currently popular on Java island, Indonesia. In the last five years, this plant which has high economic value due to its various benefits as a food plant and medicinal plant has been cultivated in Central Java. This study aims to determine the knowledge of the people in Central Java about porang plant, its cultivation, and its use in people's lives. The method used is a qualitative method by applying data collection techniques through interviews, observation and documentation. Besides general interviews, this study gains more information from some informants whose purposively chosen amongst the respondents as people knowledgeable about porang in general, and in particular A. muelleri. Results showed that people in Central Java do have knowledge about porang plant even though it was not used as food ingredient. Public knowledge about porang cultivation is obtained from various sources including social media and people who strive for porang with success. Therefore, since the community is currently aware of the potential and economic values of porang, they have started to cultivate it. Porang has enormous potential to be developed in the future and provide welfare for the community.

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Plant-derived glucomannans: Sources, preparation methods, structural features, and biological properties

Cited by 43 publications

References 85 publications

Kinetic Studies of Acetyl Group Migration between the Saccharide Units in an Oligomannoside Trisaccharide Model Compound and a Native Galactoglucomannan Polysaccharide

Kinetic Studies of Acetyl Group Migration between the Saccharide Units in an Oligomannoside Trisaccharide Model Compound and a Native Galactoglucomannan Polysaccharide

Crosstalk during the Carbon–Nitrogen Cycle That Interlinks the Biosynthesis, Mobilization and Accumulation of Seed Storage Reserves

Community knowledge of Amorphophallus muelleri Blume: Cultivation and utilization in Central Java, Indonesia

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