Publications by authors named "Sandrina Heleno"

Article Synopsis
  • - The global population growth is increasing the demand for food, but food loss and waste throughout the supply chain remain major issues that need addressing.
  • - Blockchain technology can improve food traceability, enhance sustainability, transparency, quality, and safety, and is key in reducing food waste when adopted by multiple players in the industry.
  • - The review discusses how blockchain is applied in the food chain, its advantages and challenges, and hints at the future evolution of both Blockchain and the Internet of Things in this area.
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Article Synopsis
  • The study examined the impact of a plant-based beverage on the health of mice over 28 days, involving four groups with varying drinking protocols.
  • The results indicated that mice consuming the beverage drank more liquid but ate less food, with no adverse physiological effects or changes observed in their organs.
  • Overall, the beverage appeared beneficial, showing positive effects on oxidative markers and potential diuretic properties, without any signs of disease or mortality in the mice.
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This research investigated the effects of hydroponic cultivation with enriched concentrations of magnesium (+Mg), manganese (+Mn), a combination of +Mg and +Mn, or decreased concentrations of these minerals (control) on the nutritional, chemical, and bioactive attributes of purple and green basil. While Mn significantly increased the growth of purple basil and affected the composition of essential oil and mineral accumulation, plants treated with Mg showed alterations in nutrient absorption. Protein values were lower, indicating suboptimal protein synthesis, but significant increases were observed in fat, ash, and carbohydrates, suggesting a more nutrient-rich composition due to hydroponic cultivation.

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The gut microbiota establishes a mutually beneficial relationship with the host starting from birth, impacting diverse metabolic and immunological processes. Dysbiosis, characterized by an imbalance of microorganisms, is linked to numerous medical conditions, including gastrointestinal disorders, cardiovascular diseases, and autoimmune disorders. This imbalance promotes the proliferation of toxin-producing bacteria, disrupts the host's equilibrium, and initiates inflammation.

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This study investigated the potential of incorporating cardoon (Cynara cardunculus L.) blades as bioactive and dietary fiber ingredients in vegetable/fruit-based smoothies, within a zero-waste approach. The smoothie formulations were pasteurized by high-pressure (550 MPa for 3 min, HPP) and thermal (90 °C for 30 s, TP) treatments and stored at 4 °C for 50 days.

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While the market is full of different dietary supplements, in most countries, legislation is clear and strict towards these products, with severe limitations on their health claims. Overall, the claims cannot go beyond the consumption of a said supplement will contribute to a healthy diet. Thus, the supplement industry has been reacting and changing their approach to consumers.

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Duckweed ( L.) is a small floating aquatic plant that has an important economic impact in several industrial areas. With its high biomass production, reasonable protein content, and resilience to several climates, it has been attracting increasing interest for potential use in animal and human food systems.

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Chronic diseases (CD) may result from a combination of genetic factors, lifestyle and social behaviours, healthcare system influences, community factors, and environmental determinants of health. These risk factors frequently coexist and interact with one another. Ongoing research and a focus on personalized interventions are pivotal strategies for preventing and managing chronic disease outcomes.

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Article Synopsis
  • - Pansy and viola edible flowers were grown hydroponically with varying levels of magnesium (Mg) and manganese (Mn), and their nutritional composition was analyzed for components like free sugars, fatty acids, and phenolic compounds using advanced testing methods.
  • - Results demonstrated that while increased Mg negatively impacted plant growth and mineral levels, it enhanced photosynthesis and the flowers were found to be rich in protein, low in fat, and contained sugars like glucose and fructose, with distinct fatty acids and phenolic compounds based on treatment.
  • - The flowers showed promising antimicrobial, antioxidant, cytotoxic, and anti-inflammatory properties, contributing to insights on Mg and Mn interactions, and highlighting potential for improving sustainable agriculture and health-conscious food options.
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Background: Grape agri-food wastes, such as skin, seeds, and other discarded by-products, contain phytochemical compounds that offer potential health benefits.

Methods: This study aimed to investigate the polyphenol composition and bioactivities of different extracts obtained from grape marc and seeds, with the goal of exploring their potential for application as natural food additives.

Results: Regardless of the extraction method used (dynamic maceration, ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE)), all extracts exhibited relatively high concentrations of phenolic compounds.

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Aspergillus carbonarius (Bainier) Thom. is an important pathogen and ochratoxin A (OTA) producer in grapes that can be controlled by adopting sustainable approaches. Here we evaluate the application of natural plant extracts as an alternative to synthetic fungicides to reduce OTA contamination and to prevent infection of grapes by two isolates of A.

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Article Synopsis
  • The study looked at how well natural colorants from red pitaya (dragon fruit) peels and flowers work in pasta and cookies.
  • The extracted colors stayed deep pink and stable for 14 days without changing too much.
  • The results showed less bacteria and some changes in texture and flavor in the foods depending on the colorants used and how long they were stored.
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Consumer demand for natural and healthier products has led to an increasing interest in the bioactive and therapeutic properties of plant extracts. In this study, we evaluated the phenolic compounds profile, bioactivities, and toxicities of plant extracts from eight European flora species, including L., (L.

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Opportunities for the valorisation of agro-industrial residues of the chestnut ( Mill.) production chain have been fostered with the production of multifunctional polyphenol-rich extracts with the potential to be introduced as natural additives or active components in several products. Nonetheless, it is crucial to explore the feasibility of different extracts from the various by-products for these applications through the exhaustive study of their composition and bioactivities without losing sight of the sustainable character of the process.

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The present study aims to determine the combined effect of cropping system and irrigation regime on the chemical composition and bioactive properties of lemon balm aerial parts. For this purpose, lemon balm plants were grown under two farming systems (conventional farming vs organic farming) and two irrigation levels (full irrigation vs deficit irrigation) and harvested twice throughout the growing period. The collected aerial parts were subjected to three different methods of extractions, namely infusion, maceration and ultrasound-assisted extraction and the obtained extracts were evaluated in terms of chemical profile and bioactivities.

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This work proposes the application of astaxanthin-rich wet paste (HPW) as a partial substitute for wheat flour in the preparation of filloas, a dish that combines the basic ingredients of industrial bakery. The nutritional and color profile of HPW-enriched samples was evaluated by comparative analysis with a mixture of synthetic food dyes. The highest content of carotenoids (798 ± 12 μg g) and fatty acids (76 ± 2 mg g) was obtained for a filloa fortified with in contrast to a non-significant dye response.

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L. is a species commonly grown in regions of the Northern Hemisphere, and is a good candidate to be cultivated in marginal lands. Plants coming from a pruning performed in a natural population located in Spain were used to assess the yield and quality of different products obtained following the cascade principle.

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The recent pandemic of COVID-19 caused by the SARS-CoV-2 virus has brought upon the world an unprecedented challenge. During its acute dissemination, a rush for vaccines started, making the scientific community come together and contribute to the development of efficient therapeutic agents and vaccines. Natural products have been used as sources of individual molecules and extracts capable of inhibiting/neutralizing several microorganisms, including viruses.

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"Económicos" are traditional Portuguese pastry products; although their production is low-cost, their nutritional value is equally low. Since it is a widely consumed product in the Trás-os-Montes region, it is important to add value to it without making significant changes to the traditional recipe. Thus, this work has the main objective to increase the nutritional power of "económicos" through the incorporation of chestnut () fruit flour.

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The plant kingdom is an endless source of molecules that can be applied in almost all realms of society. The food industry has profited from the use of plants and their derived materials for many decades. Recently, the food industry has been looking into plants to find different ways of either preserving, coloring or sweetening foods.

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The efficiency of the microwave-assisted extraction (MAE) technique on recovering nutritional and bioactive oils from salmon (Salmo salar) side streams was evaluated and compared to Soxhlet extraction. The response surface methodology (RSM) coupled with a central composite rotatable design was used to optimize time, microwave power, and solid/liquid ratio of the MAE process in terms of oil yield. The optimal MAE conditions were 14.

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