Maria Dolores López Belchí

Maria Dolores López Belchí
University of Concepción · Facultad de Agronomía

PhD in Chemistry
Research in plant secondary metabolites. Development of bioproducts. Analytical techniques of bioactive compounds

About

119
Publications
22,523
Reads
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1,334
Citations
Citations since 2017
67 Research Items
1036 Citations
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2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
Introduction
Phytochemistry. Agroalimentary Industry. Microencapsulation techniques. Analytical techniques, GC/MS, SPME, HPLC. Biotechnology.
Additional affiliations
November 2013 - May 2022
University of Concepción
Position
  • Research Assistant
Description
  • -Chemistry -Secondary metabolites
March 2013 - November 2013
Spanish National Research Council
Position
  • PostDoc Position
April 2010 - October 2010
École Nationale Vétérinaire, Agroalimentaire et de l'Alimentation Nantes-Atlantique
Position
  • PostDoc Position
Education
October 2004 - October 2008
University of Murcia
Field of study
  • Chemistry

Publications

Publications (119)
Article
Full-text available
The profitable insecticidal action of monoterpenoids prompted us to test their efficiency against stored-grain beetle species, via inhibition of acetylcholinesterase (AChE). For this, we first studied the ability of the monoterpenoids geraniol, linalool, camphor, fenchone, carvone and γ-terpinene, besides the phenylpropanoids trans-anethole and est...
Article
In previous papers the toxicity of the monoterpenoids linalool and carvone and the phenylpropanoids trans-anethole and estragole, as well as the capacity to induce resistance to Sitophilus oryzae and Cryptolestes pusillus trough acetylcholinesterase (AChE) inhibition from either susceptible or tolerant (up to the tenth generation) insect population...
Article
Full-text available
Plant fertilization is a major issue in the context of increasing population and food risk, higher cost of fertilizers, and low target efficiency of traditional mineral fertilization practices. Alternatively, application of microbial inoculants to the soil can enhance the uptake of nutrients by plants and increase the efficiency of mineral fertiliz...
Article
In recent studies, insecticide activity of a monoterpene, linalool, has been demonstrated, finding, however, limitations in application because of its rapid volatilization. Potential effectiveness of microcapsules and effects of various types of matrices on its stability as controlled-release systems for the slow volatilization of linalool to be ap...
Preprint
Full-text available
Background and Aims. The study aims to explore the impact of advancements in wheat genetics on root structure and rhizosphere biology, which are still not fully understood. Specifically, we investigated various factors including the exudation of carboxylates, colonization by arbuscular mycorrhizal fungi, microbial activity, and root architecture in...
Article
Full-text available
Ingredients rich in phenolic compounds and antioxidants of winemaking wastes, which play an important role in the prevention of various diseases and the control of viruses, are being explored. Currently, there is a concern about honeybee population loss, with deformed wing virus (DWV) being the most common virus infecting apiaries and one of the ma...
Article
Full-text available
Calafate fruits have a high content of phenolic compounds and an antioxidant activity up to four times higher than that of blueberries. The establishment of a calafate orchard and irrigation responses on fruit and soil characteristics have been scarcely studied. Therefore, the objective of this study was to evaluate the effect of water replenishmen...
Article
Tuta absoluta is one of the most serious pests of tomatoes worldwide. The current strategies of pest control for T. absoluta include essential oils (EOs) and its formulations. Biological activity of Laureliopsis philippiana essential oil, a tree species native from Chile, has been demonstrated against pests. Hence, the aims of this study were to de...
Article
Full-text available
Calafate (Berberis microphylla G. Forst) is an evergreen shrub with blue berries that grows naturally in Patagonia, in South America. It has beneficial nutraceutical characteristics for human health. The objective of the research was to evaluate the effect of different harvest dates of calafate clones in the south-central zone of Chile on the polyp...
Article
There is a growing interest in food and bioactive compounds with health benefits. Several studies on wild fruits have reported high anthocyanin contents and antioxidant potential mainly influenced by abiotic stress, particularly in native berries. Maqui (Aristotelia chilensis (Mol.) Stuntz), a Chilean native berry, has been referred as a “superfrui...
Article
Full-text available
Mulch is widely used in blueberry cultivation for weed control; however, there is still uncertainty as to how the use of different types of mulch alters leaf photosynthetic behavior and the quality and productivity of blueberry fruit. The objective of our research was to evaluate the effect of different types of mulch on the physiological, quality...
Article
Full-text available
Bull’s-eye rot, produced by Phlyctema vagabunda, is an important postharvest disease in apples. Current measures to control infection include synthetic fungicides, in addition to the application of copper hydroxide and potassium phosphite. However, growing public concern regarding fungicide residues in food has generated interest in developing non-...
Article
Full-text available
Melissa officinalis L. is a plant of the Lamiaceae family known in numerous countries for its medicinal activities. This plant has been used since ancient times to treat different disorders, including gastrointestinal, cardiovascular, neurological, psychological conditions. M. offic-inalis contains several phytochemicals such as phenolic acids, fla...
Article
Full-text available
Management of waste and use of winemaking by-products plays an important role in the development of new ingredients, especially with antiviral properties. Although the richness of bio-active compounds from wine waste is known, less is known about potential antiviral action. Bioac-tive compounds and health-enhancing effects of winery by-products mak...
Article
Full-text available
The synergistic effect between heavy metals and microplastics can affect soil properties as well as plant performance and yield. The objective of this study was to evaluate the combined effect of microplastics and cadmium on a soil–plant system. Specifically, we proposed to explore changes in soil microbiological activity, the growth and yield para...
Article
Microplastics (MPs) can affect plant biomass, tissue composition, and root traits. However, the effects of MPs on the synthesis of secondary metabolites and on the accumulation of bioactive compounds remain poorly studied. The objective of this work was to analyze accumulation of bioactive compounds in broccoli and radish sprouts grown hydroponical...
Article
Full-text available
Different concentrations of compost applied as organic fertilizer can modify productive, quality, and chemical parameters in several fruit tree species. The objective of this study was to determine the effect of increasing applications of compost on physiological, productive, and quality parameters in calafate fruit during the seasons of 2018–2019...
Article
Full-text available
Vegetable sprouts are a food source that presents high content of bioactive compounds which can also be enhanced through elicitation mechanisms. To better understand the scientific production and research trends on this topic, a bibliometric analysis by means of the Web of Science database was carried out. The results showed significant growth in r...
Article
Full-text available
Essential oils and derivatives have shown effective insecticidal activity against different agricultural pests. However, the use of these bioactive compounds can result in negative effects due to their high volatility and difficult handling. Both solid and liquid formulations of essential oils have been developed in recent years. Currently, there a...
Article
Full-text available
Calafate is a berry rich in anthocyanins that presents higher content of polyphenols than other fruits. Its compounds have been described previously, however, the potential thereof in preventing and treating degenerative disorders has not yet been studied. Due to its astringency, the consumption of this berry in its natural state is limited. To pro...
Article
Pyrethroids are the insecticides most commonly used inside traps, and the lack of alternatives poses the risk of pests developing resistance. In this paper we present two (E)-anethole formulations (spray drying (SD) and oil emulsion entrapment (OEE) processes) that provide a controlled release of their bioactive ingredient in the vapour phase with...
Article
Full-text available
The genus Peganum includes four species widely distributed in warm temperate to subtropical regions from the Mediterranean to Mongolia as well as certain regions in America. Among these species, Peganum harmala L., distributed from the Mediterranean region to Central Asia, has been studied and its phytochemical profile, traditional folk use, and ap...
Article
Full-text available
Wogonin is a flavonoid found in different plants such as roots of Scutellaria baicalensis Georgi distributed mainly in Asia and Europe. Dried root extracts of S. baicalensis with high content of wogonin, popularly known as “Huang-Qin” or Chinese or baical skullcap, have been used for long time in traditional Chinese medicine. Several health benefit...
Article
The content of nutritional compounds, bioactive and antioxidant capacity of quitoquito (Solanum quitoense Lam) were determined in the present investigation. Highlights the fiber content (1,87 ± 0,06%) and minerals such as potassium (40,6 ± 0,21 mg / 100 g) and iron (34,6 ± 0,21 mg / kg) which are founded in greater proportion, such as macro and mic...
Article
Full-text available
This research was focused on developing means of Tintorera grape (Vitis vinifera L.) waste recovery, devising new value-added uses for that material and optimizing of anthocyanin-rich formulations by spray-drying in order to obtain novel ingredients, all for food industry use. First, the identification of phenolic compounds in Tintorera grape extra...
Article
Full-text available
This research was focused on developing means of Tintorera grape (Vitis vinifera L.) waste recovery, devising new value-added uses for that material and optimizing of anthocyanin-rich formulations by spray-drying in order to obtain novel ingredients, all for food industry use. First, the identification of phenolic compounds in Tintorera grape extra...
Article
Full-text available
The native flora of Chile has unique characteristics due to the geographical situation of the country, with the vast desert in the North, Patagonia in the South, the Andean Mountains on the east and the Pacific Ocean on the west. This exclusivity is reflected in high concentrations of phytochemicals in the fruits and leaves of its native plants. So...
Article
Full-text available
Calafate (Berberis microphylla G. Forst) is a wild bush plant widely distributed in the south of Argentina and Chile. Their blue colored fruits present particular flavor and health benefits attributed to high polyphenol contents biosynthesized by the plant under stress. Studies about correlation of abiotic conditions with anthocyanin profiles and p...
Chapter
This chapter is focused on the role of polyphenols and other antioxidants from by-products to be used in new fortified foods or supplements adding value and potential functionality to the recovered compounds. The residues can be a potential for the food industry with new options of available products for consumers. The goal of this part of the book...
Chapter
This chapter is focused on the role of polyphenols and other antioxidants from by-products to be used in new fortified foods or supplements adding value and potential functionality to the recovered compounds. The residues can be a potential for the food industry with new options of available products for consumers. The goal of this part of the book...
Article
BACKGROUND:The native Chilean white strawberry (Fragaria chiloensis ssp. chiloensis f. chiloensis) is a semi-domesticated crop that has a characteristic aroma and flavor and a low production in southern Chile. However, edaphoclimatic conditions can influence on fruit quality attributes and its health benefits. Establishing a link between seasonal c...
Article
Full-text available
Wheat (Triticum aestivum L.) is often affected by abiotic stress such as high temperatures and water deficit. Due to this, grain yield can be reduced by a water deficit and an inadequate grain filling as well as affect synthesis of polyphenolic compounds. The aim of this study was to determine the influence of water deficit on yield in spring wheat...
Article
Thyroid cancer is the most frequent endocrine malignancy, with more than 500,000 cases per year worldwide. Differentiated thyroid cancers are the most common forms with best prognosis, while poorly/undifferentiated ones are rare (2% of all thyroid cancer), aggressive, frequently metastasize and have a worse prognosis. For aggressive, metastatic and...
Article
Netting has been widely used in recent years to protect apple fruit from solar injury. There is little information on the biochemical aspects underlying the effectiveness of netting against sunburn in apples. The objective of this study was to quantify the effects of netting on polyphenols, anthocyanins, and antioxidant activity in apples with diff...
Article
Full-text available
The impact of herbicide application on the accumulation of secondary metabolites and photosynthesis as stress indicators in the quinoa (Chenopodium quinoa Willd.) crop is unknown. The objective of the present study was to evaluate the effect of two post-emergence herbicides on production, total polyphenol content, and chlorophyll fluorescence in qu...
Article
Full-text available
( E)-anethole is a phenylpropanoid that is the main compound found in the essential oils (EOs) of anise and fennel seeds, and either fumigant or direct contact activity of this compound has been demonstrated against aphids and stored product pests. In this work, solid microspheres were prepared by three methods-oil emulsion entrapment, spray-drying...
Article
Current trends in agriculture involve the use of farming practices conditions aimed at improving the fruit nutritional value by directly affecting the content of antioxidants. Chile is the second-largest blueberry-producing country in the world, and the biggest exporting country in the South hemisphere. Therefore, the purpose of this study was to e...
Article
Full-text available
Diferentes berries de la zona centro y sur de Chile fueron analizados con el fin de buscar fuentes promisorias de polifenoles con clara actividad sobre la salud humana. Se estudiaron cinco bayas nativas: arrayan, frutilla blanca, murtilla y calafate, y un berry tradicional (uva tintorera). Se determinó in vitro sus propiedades antioxidantes según e...
Article
Full-text available
Vaccinium corymbosum L. (Ericaceae) is a highly valued fruit crop and the most common type of blueberry grown in Chile. Plant growth and yield crop production are affected by agricultural practices and different soil parameters including chemical and biological properties. We performed a field assay to assess the effect of the inoculation with a mi...
Article
Stevia rebaudiana Bertoni, a plant from South America and indigenous of Paraguay, has shown several biological effects and healthy properties, although it is especially used in South America and some Asiatic regions. In addition, it is a natural sweetener, almost 300 times sweeter than sucrose, being attributed to its phytoconstituents prominent an...
Article
There is limited information about the critical period of weed interference (CPWI) in quinoa (Chenopodium quinoa Willd.) and the effect produced by the weed-crop interaction in secondary metabolite accumulation. The objective of the present study was to determine the CPWI and its effect on total polyphenol content in quinoa. The experiments were co...
Article
Full-text available
Aim: The molecular typing and the susceptibility of Staphylococcus aureus strains of swine origin to antibiotics, oregano (Origanum vulgare L.) essential oil (EO), and Chilean blackberry maqui [Aristotelia chilensis (Molina) Stuntz] extract were determined. Methods and results: Twenty S. aureus strains of swine origin were subjected to molecular...
Article
Berries from central and southern Chile were analyzed in order to find promising sources of polyphenols with clear activity on human health. Five native fruits like arrayan, white strawberry, murtilla and calafate, and a traditional berry (grape called “tintorera”) were studied. Antioxidant properties were determined in vitro according to the total...
Chapter
The bioactive compounds in foods are diverse and they are present in plants, animals, and other organisms in small quantities as secondary metabolites, alkaloids, growth factors, phenolic compounds, lignans, salicylates, stanols, sterols, and glycosinolates, among others. These bioactives have been tested either for health benefits or as potential...
Article
Full-text available
The Biobío Region in Chile presents special edaphoclimatic characteristics and biodiversity that make it suitable for the introduction and development of some berries that are understudied in terms of their health-promoting composition and characteristics. Chilean strawberry (Fragaria chiloensis ssp. chiloensis, form chiloensis) and calafate (Berbe...
Article
Full-text available
The Biobío Region in Chile presents special edaphoclimatic characteristics and biodiversity that make it suitable for the introduction and development of some berries that are understudied in terms of their health-promoting composition and characteristics. Chilean strawberry (Fragaria chiloensis ssp. chiloensis, form chiloensis) and calafate (Berbe...
Article
A “box‐in‐box” co‐cultivation system was used to investigate plant responses to microbial volatile compounds (VCs), and to evaluate the contributions of organic and inorganic VCs (VOCs and VICs, respectively) to these responses. Arabidopsis plants were exposed to VCs emitted by adjacent Alternaria alternata and Penicillium aurantiogriseum cultures,...
Poster
Full-text available
Consumers are seeking better quality products, which differ from the products found in the traditional market, presenting clear advantages in our health. Sprouts are germinated seeds, usually in dark or low light conditions, high humidity and temperature until their cotyledons appear whereas microgreens are also seeds germinated having two fully de...
Poster
Evaluation of antioxidant activity and phenolic content of calafate berries and to correlated with abiotic stimulus
Article
Full-text available
Elagitaninos en frutilla blanca
Article
Full-text available
The gut parasite Nosema ceranae is one of the most prevalent honey bee microsporidia worldwide and its chemical management in American countries is mainly based on the antibiotic fumagillin. However, it has recently been reported that this drug has negative side effects in honey bees; therefore, non-harmful alternative treatments must be found. The...
Article
Full-text available
Linalool is a monoterpene, which exhibits floral and spicy aromas as well as a variety of pharmacological effects, including antioxidant, anti-inflammatory, and cardiovascular. Wine flavor is highly dependent on the chemical compounds of berries. The objective of this study was to evaluate the concentration of volatile compounds, especially linaloo...
Article
Full-text available
This research was carried out in a blueberry (Vaccinium corymbosumL.) orchard cv. Brigitta (fourth harvest) under organic management located in the Province of Ñuble (Chillán, Chile). The objective of this work was to determine the effect of different pruning intensities on yield and fruit quality. The experiment was conducted using a randomized co...
Article
Full-text available
A field experiment was carried out to assess the effectiveness of microbial consortium (bacteria and fungi) and humic substances separately, as well as the effect of the combined application of them on the growth of blueberry (Vaccinium corymbosum L.) seedlings and the physicochemical and biological properties of a volcanic ash-derived soil. One ye...