30 research outputs found

    Effect of domestic cooking methods on physicochemical, nutritional and sensory properties of different varieties of brown rice from Southern Thailand and Malaysia

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    Consumption of brown rice is increasing on account of higher nutritional components such as vitamins, minerals, fibres and antioxidants than white rice. However, the effect of domestic cooking methods on nutritional attributes of brown rice is not well-characterized. Hence, this study aimed to investigate the effect of cooking methods; pressure cooker (PC) and rice cooker (RC) on physicochemical, nutritional and sensory properties of brown rice from five different varieties: Sungyod (SY), Chiang (CH), and Lepnok (LP) of Thai and long grain LS1 and LS2 of Malaysian origin. Peak viscosity (PV) and final viscosity (FV) among uncooked samples were significantly different except for LS1 and LS2. Between cooking methods, protein content (8.17 – 10.14%) was significantly different (p < 0.05) except in SY, LS1 and LS2 varieties whereas fat (1.74 – 2.71%) and ash content (1.15 – 1.46%) showed significant difference (p < 0.05) only in LP and SY varieties. Loss of iron was significantly higher in RC method than PC method but zinc and thiamine was insignificant. The LS1 and LS2 cooked in PC was significantly softer (p < 0.05) than cooked in RC. Hardness of PC cooked rice was correlated with PV (r = –0.965), breakdown viscosity (r = –0.973), setback viscosity (r = –0.944) at p < 0.01 and pasting temperature (r = 0.89, p < 0.05) of uncooked brown rice flours. Overall, PC was found better over RC in terms of cooking time, textural properties, nutrients and sensory attributes

    Who shapes the politics of expertise? Co-production and authoritative knowledge in Thailand’s political forests

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    Expert environmental knowledge has often been described as a governmental rationality that reduces political debate and facilitates state control. In this paper, I argue instead that this line of reasoning simplifies how knowledge gains political authority, especially when expertise is shared and left unchallenged by diverse actors, including those in conflict with each other. Using the framework of co-production from Science and Technology Studies (STS), I apply this argument to conflicts over the supposed watershed functions of forests in Thailand, where simplified narratives about the impacts of land use on water supply are used as justifications for territorialisation and restrictions on forest land. In particular, I focus on local resistance to the proposed Kaeng Sua Ten dam in northern Thailand in order to demonstrate how protestors have deliberately reproduced formal expertise to empower themselves, but by so doing also reinforcing simplified visions of watershed science and community culture. I argue that exposing the co-production of authoritative knowledge and visions of social order offer greater opportunities for understanding the role of expertise as a political force than analysing competing assemblages based on oppositions of state-led expert knowledge and traditional local practices
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