Evaluation of the influence of cultivation on the total magnesium concentration and infusion extractability in commercial arabica coffee

Espinelli, João Batista dos Santos; Silva, Guilherme von Brixen Montzel Duarte da; Bastos, Renan Branco; Badiale‐Furlong, Eliana; Carapelli, Rodolfo

doi:10.1016/j.foodchem.2020.127012

Cited by 15 publications

(5 citation statements)

References 30 publications

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“…Measurements of Nutrient Contents. Tea samples (0.2 g) were digested with 8 mL of concentrated HNO 3 and 2 mL of H 2 O 2 at 180 °C, as described by Dos Santos Espinelli Junior et al, 26 with minor modifications. After digestion, the mineralized samples were transferred to volumetric flasks, diluted to 30 mL with ultrapure water, and filtered with 0.22 μm filters.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

Exploring the Effects of Magnesium Deficiency on the Quality Constituents of Hydroponic-Cultivated Tea (Camellia sinensis L.) Leaves

Zhang

et al. 2021

J. Agric. Food Chem.

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Magnesium (Mg) plays important roles in photosynthesis, sucrose partitioning, and biomass allocation in plants. However, the specific mechanisms of tea plant response to Mg deficiency remain unclear. In this study, we investigated the effects of Mg deficiency on the quality constituents of tea leaves. Our results showed that the short-term (7 days) Mg deficiency partially elevated the concentrations of polyphenols, free amino acids, and caffeine but decreased the contents of chlorophyll and Mg. However, long-term (30 days) Mg-deficient tea displayed decreased contents of these constituents. Particularly, Mg deficiency increased the index of catechins' bitter taste and the ratio of total polyphenols to total free amino acids. Moreover, the transcription of key genes involved in the biosynthesis of flavonoid, caffeine, and theanine was differentially affected by Mg deficiency. Additionally, short-term Mg deficiency induced global transcriptome change in tea leaves, in which a total of 2522 differentially expressed genes were identified involved in secondary metabolism, amino acid metabolism, and chlorophyll metabolism. These results may help to elucidate why short-term Mg deficiency partially improves the quality constituents of tea, while long-term Mgdeficient tea may taste more bitter, more astringent, and less umami.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Exploring the Effects of Magnesium Deficiency on the Quality Constituents of Hydroponic-Cultivated Tea (Camellia sinensis L.) Leaves

Zhang

et al. 2021

J. Agric. Food Chem.

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“…It is located at the regional boundary, and the tectonic movement is extremely intense [ 2 ]. Limited by the monsoon weather, the rainfall is concentrated and large, which is easy to cause various geographical natural disasters [ 3 ]. In the mountainous areas of southwest China, the population distribution is obviously affected by the terrain, and it is basically distributed along the relatively flat areas such as valleys [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Geoecological Restoration in Mountainous Cities Affected by Geological Hazards with Interval Intuitive Fuzzy Information

Song¹,

Gao²,

He³

et al. 2022

Computational Intelligence and Neuroscience

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With the progress of the industrial revolution and the development of modern science and technology, China’s urbanization process has been promoted. Urban and rural economic and social construction has greatly improved the local appearance and social structure. Human activities and natural ecology have affected the whole geological-ecological process, further aggravated the geological-ecological damage, and caused more serious geological disasters, especially in some places (especially in mountainous areas). In recent years, strong geological disasters have occurred in Wenchuan, Yushu, and Lushan regions of China, which not only seriously endanger the life safety and social life of the affected people, but also damage the geological-ecological structure and social functions of the region, especially in the geographically sensitive Alpine urban areas. It also produced many secondary disasters, such as landslides and land collapses. Mountainous cities and towns have special requirements for construction land, which is difficult to construct. Industrial land resources are in short supply, urban and rural comprehensive construction land is not active, and cultivated land area resources are tight. Compared with plain towns with superior geological conditions, mountain towns are more vulnerable to adverse geological environment such as geological ecology, landform, ecological vegetation, and hydrology. The geographical natural environment, as an organic whole that combines and interacts with the geomorphic natural environment, the biological-ecological environment, and the human social management environment, is the main reason that affects the development of mountain towns. Once the mountain geological ecology is destroyed, a series of geological disasters will often be induced, which will seriously restrict the healthy development of mountain towns. Scientific management of the geological environment plays an important role in the assessment of the geological environment restoration of mountain towns after disasters. Therefore, taking the most beautiful counties in China, Baoxing City, and Tianquan County as examples, on the basis of studying the complex geological-ecological theory of geological disasters, this paper further improves the traditional ecological footprint model in China, and using the interval direct fuzzy information constructs the metric index of ecological restoration scheme of mountain towns, and determines the evaluation index and optimal scheme of ecological restoration. From the aspects of landscape layout construction, disaster prevention and mitigation planning and improvement, and environmental restoration project, the future geoecological restoration and response strategy of Lushan County are pointed out, which provide guidance for the postdisaster geoecological safety layout construction.

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“…Tea samples (0.2 g) were digested in 5 mL concentrated HNO 3 and 2 mL 30% H 2 O 2 at 180 • C as previously described [31], with slight adjustments. In brief, following digestion, the mineralized samples were transferred to volumetric flasks, diluted to a final volume of 30 mL with ultrapure water and filtered through 0.22 µm filters.…”

Section: Nutrient Content Measurementsmentioning

confidence: 99%

The Impact of Magnesium on the Growth, Physiology and Quality of Tea (Camellia sinensis L.) Plants under Acid Stress

Lv,

Kong,

Luo

et al. 2024

Agronomy

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Magnesium plays a crucial role in plant physiological processes. However, the specific mechanisms underlying the response of tea plants to altered magnesium nutrition under acid stress remain unclear. This study investigates how root environment acidification impacts tea seedlings and the role of magnesium (Mg) in mitigating these effects. We examine varying pH and Mg levels’ influence on tea seedlings’ resistance to abiotic stress, focusing on antioxidant capacity and nutritional content. In a hydroponic experiment, we varied root pH (3.5, 5.0, 6.5) and Mg concentrations (0.01, 0.4, 0.8 mM), assessing parameters like antioxidant capacity, peroxidative damage, and nutritional content at 1, 7, 15, and 30 days post treatment. Root environment acidification and Mg deficiency worsened peroxidative damage in tea plant leaves and roots. Increased Mg supplementation enhanced antioxidant enzyme activity, reducing malondialdehyde and mitigating oxidative damage from root environment acid stress. Under acid stress, 0.8 mM Mg significantly increased tea leaf polyphenols, amino acids, and water-soluble extracts. Mg notably boosted chlorophyll content, surpassing lower Mg levels at pH 5. Additionally, Mg reversed root vitality inhibition induced by acid stress, leading to increased nitrogen, potassium, and Mg concentrations in leaves, promoting balanced nutrient absorption. Mg supplementation is crucial for enhancing tea plant antioxidant capacity, alleviating growth inhibition from root-environment acid stress, and improving chlorophyll content and root vitality, highlighting Mg’s significance in tea cultivation and broader agricultural practices.

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Evaluation of the influence of cultivation on the total magnesium concentration and infusion extractability in commercial arabica coffee

Cited by 15 publications

References 30 publications

Exploring the Effects of Magnesium Deficiency on the Quality Constituents of Hydroponic-Cultivated Tea (Camellia sinensis L.) Leaves

Exploring the Effects of Magnesium Deficiency on the Quality Constituents of Hydroponic-Cultivated Tea (Camellia sinensis L.) Leaves

Analysis of Geoecological Restoration in Mountainous Cities Affected by Geological Hazards with Interval Intuitive Fuzzy Information

The Impact of Magnesium on the Growth, Physiology and Quality of Tea (Camellia sinensis L.) Plants under Acid Stress

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