Hafeedza Abdul Rahman

Hafeedza Abdul Rahman
Universiti Kebangsaan Malaysia | ukm · Department of Food Sciences

BSc (Food Science and Technology) Universiti Teknologi Mara, PhD (Food Science) Universiti Putra Malaysia

About

20
Publications
9,503
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571
Citations
Citations since 2016
18 Research Items
446 Citations
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080
2016201720182019202020212022020406080

Publications

Publications (20)
Article
Kombucha adalah sejenis minuman yang terhasil daripada penapaian teh manis dengan menggunakan kultur simbiotik bakteria dan yis. Fukoidan merupakan sejenis polisakarida fungsian daripada rumpai laut yang dipercayai mempunyai kesan kesihatan yang baik. Penyelidikan ini telah dijalankan bertujuan untuk mengetahui kesan kepekatan fukoidan (0, 0.25, 0....
Article
Kajian ini menentukan jumlah fenol, antioksidan dan ketoksikan buah Ziziphus mauritiana yang diekstrak menggunakan pengekstrakan bendalir lampau genting (SFE). Ekstrak dianalisis untuk jumlah kandungan fenol (TPC) dan aktiviti antioksidan berdasarkan aktiviti penyingkiran radikal bebas, 2,2-difenil-1-pikrilhidrazil (DPPH). Kajian ketoksikan akut di...
Article
Penyelidikan ini dijalankan untuk menilai ciri fizikokimia gam bendi yang diekstrak pada suhu 25, 40, 60 dan 80 ℃. Ekstrak gam bendi kemudiannya dianalisis bagi penentuan pH, warna, kapasiti pengikat air, reologi dan kandungan fenol jumlah (TPC). Aktiviti antioksidan iaitu pemerangkapan radikal bebas 2,2-diferil-1-pikrihidrazil (DPPH) serta kuasa a...
Article
Full-text available
Fucoxanthin is an algae-specific xanthophyll of aquatic carotenoid. It is prevalent in brown seaweed because it functions as a light-harvesting complex for algal photosynthesis and photoprotection. Its exceptional chemical structure exhibits numerous biological activities that benefit human health. Due to these valuable properties, fucoxanthin’s po...
Article
Alpinia mutica Roxb. (Zingiberaceae), juga dikenali sebagai halia hutan ialah sejenis tumbuhan yang kaya dengan sumber bahan bioaktif, berupaya menentang sel kanser dan berpotensi untuk bertindak sebagai agen antioksidan. Kajian ini dijalankan untuk mengkaji kesan kaedah pengeringan (pengeringan ketuhar (PK) dan sejuk beku (PB)) serta penggunaan ca...
Article
Kualiti fizikokimia dalam sayur-sayuran berubah semasa penyimpanan. Kajian ini menentukan perubahan fizikokimia dalam brokoli dan bunga kobis semasa penyimpanan dan menentukan keadaan penyimpanan yang paling sesuai. Uji kaji ini dijalankan berdasarkan suhu penyimpanan (4 °C dan 23 °C) dan kaedah pembungkusan (tidak dibungkus dan dibungkus dengan be...
Article
Curcuma aeruginosa Roxb. is one of the plants from the Zingiberaceae family which the rhizome has been used for medicinal purposes. However, the biological properties of the leaves have not been fully explored. Therefore, this study was conducted to evaluate the effects of different drying methods and solvents on total phenolic content, antioxidant...
Article
Full-text available
Breakfast is the most important meal of the day. However, university students tend to skip breakfast due to their hectic lifestyle. Therefore, the patterns, barriers, and knowledge, attitude and practice (KAP) of breakfast consumption were investigated in this study via questionnaires among 396 students of Universiti Kebangsaan Malaysia. Results sh...
Article
Agro-industrial waste is a by-product of agriculture-based industries which are often rich in lignocellulosic materials and bioactive compounds. The management of these wastes is poorly regulated by the industries where it is commonly discarded in uncontrolled practices. Such activities have created an adverse effect on ecosystem and the economy as...
Article
The use of microalgae as an alternative source of biofuel production has become an emerging topic of interest in recent years. However, the main challenge in the microalgae downstream process lies in the separation of microalgae from the growth media (harvesting process). This study proposed the use of different organic flocculants, namely, cationi...
Article
Full-text available
Malaysian main dishes have been related to high carbohydrate and protein contents, and lack of vegetables. However, consumption patterns and nutrient composition of these types of dishes were scarcely reported. This study was conducted to determine consumption patterns and nutrient composition of Malaysian ready-to-eat cooked dishes. Consumption pa...
Article
Costus plant is considered as a medicinal plant especially in therapeutic intervention. The current study reports the composition, phytochemical and antioxidant properties of red button ginger (Costus woodsonii) using sequential extraction. Solvents of different polarities (hexane, ethyl acetate, methanol and water) were used to sequentially extrac...
Article
This study was conducted to produce innovative mayonnaise by Carotino oil and subsequently to determine its effect on the oxidative stability as well as sensory acceptance. Mayonnaise sample was formulated by (a) Carotino oil (MC), (b) mixture of palm oil and Carotino oil (MCS), and (c) palm oil (MS)—as control. The samples were then undergone acce...
Article
Edible bird nest (EBN) is a dried glutinous secretion from the salivary glands of swiftlet species commonly found in the Southeast Asian region, including Malaysia. It is consumed traditionally by the Chinese as food delicacy and also considered as an important ingredient in traditional Chinese medicine for its beneficial health effects. The aim of...
Article
“Sambung Nyawa” (Gynura procumbens) plant is one of the herbs that traditionally been used to treat various illnesses. The main purposes of this study were to determine the effect of different drying methods and ethanol concentrations on G. procumbens leaves extraction in total phenolic content, antioxidant and anti-hyperglycaemic activities. G. pr...
Article
Full-text available
Introduction: Awareness of the importance of dietary fibre (DF) in health among adolescents is seldom reported in Malaysia. This study aimed to compare the knowledge, attitude and practice (KAP) of DF intake between Malaysian rural and urban school-going adolescents. Pulau Pangkor in Perak and Damansara in Selangor were randomly selected as rural a...
Article
Full-text available
Background Obesity is a major health concern both in developed and developing countries. The use of herbal medicines became the subject of interest for the management of obesity due to its natural origin, cost effectiveness and minimal side effects. The present study aimed at investigating anti-obesity potential of ethanolic extract from Cosmos cau...
Article
The present study describes the screening of eight herbs namely Cosmos caudatus, Pluchea indica, Lawsonia inermis, Carica papaya, Piper betle, Andrographis paniculata, Pereskia bleo and Melicope lunu based on their anti-obesity and antioxidant activities. Out of all tested herbs, Cosmos caudatus demonstrated excellent anti-obesity and antioxidant p...
Article
Full-text available
Edible seaweeds are rich in bioactive antioxidants, soluble dietary fibers, proteins, minerals, vitamins, phytochemicals, and polyunsaturated fatty acids. Although previously the seaweeds were only used as gelling and thickening agents in the food or pharmaceutical industries, recent researches have revealed their potential as complementary medicin...
Article
The in vitro and in vivo antioxidant properties, total phenolic and chemical composition of various seaweeds is compiled. Seaweeds medicinal uses include for cardiovascular disease prevention, cholesterol-lowering, anti-diabetes, anti-coagulative, anti-inflammatory, immunomodulating and anti-cancer effects. The nutrients composition, vitamin C, toc...

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Projects

Projects (3)
Project
Chemical profile and therapeutic effects of Curcuma caecia extract for the treatment of diabetes in high fat diet induced Sprague dawley rats
Project
Anti-obesity and anti-hyperlipidemic effects of Kesum (Polygonum minus) leaves extract (PMLE) in Sprague dawley rats
Project
Anti-hyperglycemic effects of edible bird nest hydrolysate