
Livia De Lacerda de OliveiraUniversity of Brasília | UnB · Department of Nutrition
Livia De Lacerda de Oliveira
Doctor of Philosophy
Coffee science, coffee terroir, chemometrics, sensory analysis
About
32
Publications
5,833
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
474
Citations
Introduction
Education
August 2006 - June 2009
University of Brasilia
Field of study
- Health Sciences
August 2003 - March 2005
February 1997 - September 2002
Publications
Publications (32)
Coffee is a beverage whose price is closely related to the characteristics of its flavor, necessitating reliable sensory tests. To quantify their sensory attributes , classic sensorial methods such as Quantitative Descriptive Analysis (QDA) can be useful. However, uncertainties persist due to protocol variations, which made uncertain the quality of...
Located in Brazil’s Central Plateau, the Cerrado Savannah is an emerging coffee-growing region with significant potential for the national coffee market. This study investigated the impact of potassium fertilization on Arabica coffee quality in the Cerrado, using three potassium sources (K2SO4, KCl, and KNO3) and five cultivars (Arara, Aranãs, IPR1...
The Passiflora genus is recognised for its ethnopharmacological, sensorial, and nutritional significance. Yet, the screening of its dietary and bioactive molecules has mainly targeted hydrophilic metabolites. Following the PRISMA-P protocol, this review assessed the current knowledge on carotenoid composition and analysis within Passiflora, examini...
A qualidade sensorial do café é avaliada por meio de diferentes métodos,
conhecidos como Métodos Oficiais de Classificação da Qualidade de Café
(MOCQC), que podem ser utilizados por diferentes tipos de avaliadores, seriam eles especialistas ou consumidores.
Comercialmente, os métodos baseados na metodologia da Specialty Coffee
Association (SCA)...
Although whole grain (WG) sorghum is affordable and a healthier alternative to gluten-free pastas (GFPa), sorghum diversity requires evaluation for application in pasta. We aimed to develop GFPa using six sorghum hybrids. White commercial flour (WCF) and sorghums with brown (BRS 305 and 1167048), red (BRS 330 and BRS 332), and white (CMSXS 180) per...
Passiflora setacea (PS) is a species of wild Brazilian passion fruit, rich in bioactive compounds. Studies suggested that a diet rich in bioactive compounds can positively modulate inflammation and oxidative...
We estimated the shelf life of pasteurized Passiflora setacea pulp, by accelerated tests based on microbiological, nutritional, functional, and sensory variables. The pulp was pasteurized using the binomial of 82 °C/20 s and stored at 25, 35, and 45 °C. The quality of the pulp was evaluated at the beginning of storage and every two days, up to 12 d...
The Brazilian biodiversity is one of the largest in the world, with about 41 000 species cataloged within two global biodiversity hotspots: Atlantic Forest and Cerrado, the Brazilian savannah. Passiflora, known also as passion flowers, is a genus of which 96% of its species are distributed in the Americas, mainly Brazil and Colombia. Passion fruit...
Physical, chemical, and antioxidant analysis of grain and flour of five sorghum hybrids with different pericarp color (brown, red, and white) and endosperm texture were conducted to prepare gluten-free bread. Specific volume, texture, and acceptance were assessed in the breads. All characteristics were correlated to identify the drivers of liking....
Baru is an exotic fruit grown in different regions of the Brazilian savannah, but its sweet mesocarp is discarded after extraction of the almond the nutritional and antioxidant properties of baru mesocarp (pulp), as harvested in three Brazilian locations (Goiás-GO; Federal District-DF and Minas Gerais-MG), and the feasibility of crystalizing the su...
We present the chemical composition, quality parameters and antioxidant capacity of pumpkin seed oils (PSO) from Cucurbita pepo, Cucurbita maxima, and Cucurbita moschata cultivated in Brazil. In addition, PSO nanoemulsions (nanopepo, nanomax and nanomosc) were developed and their physical stabilities were assessed under long-term storage at two tem...
Rapid descriptive methods have emerged as a relatively simple alternative for screening the sensory attributes of products that drive their liking, and may contribute to identify sorghum genotypes with potential for development of gluten-free breads with higher consumer acceptance. Two rapid techniques, Check-All-That-Apply (CATA) and Optimized Des...
Consumers are becoming more health-conscious and have less time to prepare meals. They are often confused about which time and cooking method are adequate to preserve nutrients in vegetable. All cooking techniques cause changes in the nutrient content and the taste of a vegetable. The objective of this study was to determine the best cooking method...
Background:
Passiflora setacea (PS) is a passionfruit variety of the Brazilian savannah and is a rich source of plant food bioactives with potential anti-inflammatory activity. This study aimed to investigate the effect of an acute intake of PS juice upon inflammation, metabolic parameters, and gene expression on circulating immune cells in humans...
Passiflora cincinnata Mast. (caatinga passion fruit) has acidic fruits with a peculiar flavor, green color when ripe and a low percentage of abscission making it difficult to identify the point of harvest. In order to verify the harvest period in two populations of P.cincinnata, flowers were marked in anthesis and after six periods the fruits were...
Passiflora setacea is a wild species of passion fruit with interesting functional properties. Fruit seasonality demands conservation methods to enable its consumption throughout the year. We evaluated High Temperature Short Time (HTST) and Low Temperature Long Time (LTLT) binomials on physical, chemical, antioxidant and sensory characteristics of P...
The aim of this study was to evaluate the use of chia gel after different conditions of storage as an egg replacer in chocolate cake. Chia gel was made in a proportion of 1:10, cooked (100⁰C), for 6 minutes, then crushed. After preparation, the gel was stored in sealed sterile bags in portions of 30 g under fridge temperature for 15 days and under...
BACKGROUND
Passiflora setacea D.C is a passion fruit species native from Brazilian savannah characterized by naturally sweet sensory characteristics. Sensory quality of the pulp can be affected by growing environment. The effect of training systems (trellis or espalier), seasons (the weather conditions in periods of drought and rain) and addition o...
Passiflora setacea is a Brazilian savannah fruit known as a good source of phytochemicals. The phytochemical composition is influenced by environmental factors and management techniques such as training system. This study aimed to evaluate the influence of training system (espalier or trellis) and environmental factors (temperature, precipitation a...
A major drawback of conventional descriptive profile (CDP) in sensory evaluation is the long time spent in panel training. Rapid descriptive methods (RDM) have increased significantly. Some of them have been compared with CDP for validation. In Health Sciences, systematic reviews (SR) are performed to evaluate validation of diagnostic tests in rela...
The aim of this study is to evaluate if thermoprocessed meals ready-to-eat (MRE) offered to Brazilian army are nutritious and tasty in comparison to freshly prepared meals (FPM) and to evaluate if the regular consumption of MRE leads to rejection. The nutritional composition and acceptability of FPM and MRE were assessed in a Construction unit, wit...
Green banana puree (GBP) was used to replace fat at different levels (0%–100%) in pound cakes, followed by sugar reduction (0%–50%). Sensory profile by Check-All-That-Apply (CATA) tests and acceptance were applied to settle the best formulation in each step. The cakes with the best acceptances were characterized by physical and textural analyses. G...
Os compostos fenólicos têm sido extensivamente estudados nos últimos anos. A presença destes compostos em vários alimentos tem sido associada com as propriedades de saúde e sensoriais. Estes produtos do metabolismo secundário de plantas atuam como mecanismos de defesa vegetal contra o estresse ambiental e ataque de outros organismos. Esses composto...
Resumo – O objetivo deste trabalho foi avaliar as alterações químicas e físicas em batatas 'Ágata' minimamente processadas, embaladas sob diferentes atmosferas, durante o armazenamento refrigerado. Batatas 'Ágata' foram minimamente processadas como minibatatas e embaladas em filmes de náilon multicamadas. Os tratamentos aplicados no momento da emba...